c3 corvette pitman arm torque

35 A new ball joint is installed and the steel shaft receives new rubber or poly bushings. Zip Corvette sales and customer service representatives are here to serve you during the following hours: Our showroom is open to the public Monday-Friday from 8:30am-5:30pm (EST). 19:Install a 3/8-242 1/4 cap screw in one end of the shaft. Driveshaft Similar to a turnbuckle, there are right hand (RH) and left hand (LH) threaded connections at each end of the tie rod adjuster tube. Transfer this measurement to the corresponding new tie rod assembly. When installing the new power steering system, begin with all new components and fresh fluid. Place the control arm in a press and support the other end of the control arm shaft with a 1 11/16 socket. Clutch plates10. This bolt has a 13/16- inch head. 150 The best place to start is with the shim that came out when it was disassembled. Attach the frame crosspiece to the differential with two 7/16-18 x 118-inch bolts and 7/16-inch lock washers. 25 C3 Corvette Trailing Arm Bolt Question? To check the gear pattern, hold the yoke with one hand and turn the ring gear back and forth with the other hand and a 9/16-inch wench on the ring gear bolt. The design was so successful that it was carried over for the entire C3 production run with only minor changes. Start by using a tie rod separator to separate the outer tie rods from the spindle arm. Small-blocks from 1968 to 1979 use two U-bolts on each side to attach the shaft to the differential, which are secured with 9/16-inch nuts. The 19681982 Corvettes use a steel coil spring in the front suspension. I will not describe them here. After you have installed the first bushing, install the cross shaft into the arm. Then balance the valve. Because the system is external, everything is easy to access. 18: To remove the control arm bushings, start by removing the end cap bolts, lock washers and collars. Classic C2 and C3 Vettes have a conventional Saginaw worm-and-sector steering gear, which does the job quite well unless you'd prefer less steering effort. (This will allow you to drive the car without doing any real damage to the front tires and suspension.) Service the pump with just enough fluid to submerge the pump inside the housing. 50, Upper 65, Auto to Pinion Flange Pump It is best to sit the differential onto a jack and then install the frame member. 34 Ford used this Bendix-design "power-assist" steering design on a wide variety of vehicles ranging from the humble Falcon to the behemoth Lincoln. Start engine and run only for about two seconds. We left off with the Project Split Mod body on a dolly for transport to the body shop and a severely rusted frame. It also helps to place a piece of colored tape on each side of the bench to keep the left- and right-side parts separated. Adjusting the backlash is the best way to eliminate gear noise. The date code is irrelevant unless youre really trying to re-create [Click here to read more], If oil is the lifeblood of your engine, then the oil pump and lubrication system are indeed the heart and circulation system of your big-block Chevy. (Photo Courtesy Van Steel). L-82 Caliper Increase engine speed to approximately 1500 rpm. Oil The leader in Corvette Parts parts since 1977. Just be sure to dial them down after you are finished playing or your fillings might fall out. Profile. Repeat this process until you get the correct measurement. The box output shaft isn't sticking out past the nut as much as the box I removed. Feed the shock through the bottom of the lower control arm and insert the top of the shaft into the opening on the frame. The correct measurement is 26-3/8 inches. Fill and bleed the system. He was quickly promoted to [Click here to read more], It was much easier to stockpile Muncie spare parts and cores in the 1970s than it is today. Outlet Install a cotter key through the opening and bend back the two wires to prevent the nut from coming loose. Aftermarket suppliers offer a wide range of C3 Corvette shock absorbers. Torque sensitive drives are particularly suited to those applications where immediate response to torque demand is required for down shifting and engine speed is ideally maintained at its peak rpm. Move the gears back and forth to check for looseness and play from side to side. 60 This has to be done with the weight of the car on the suspension. Drain Plug One bolt holds these arms in place. The lower control arm has a deep well that supports the bottom of the front suspension coil spring. The long-neck pump has a keyed shaft and pulley versus the pressed-on pulleys used from 1975-'82. This car received a new steering knuckle, wheel bearings, and brake rotor. This bumper is designed to hit the lower frame rail if the suspension is fully compressed; this helps avoid damaging any suspension components if a bump is taken too hard. Five of these discs have tabs. A couple of spacer plates are employed between the subframe and framerails. Whether youre maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Power Steering parts is unsurpassed. Is your Pitman arm on upside down by chance? $14.75 shipping. 24: When installing the shafts in the lower control arms, make sure that the two mounting holes in the shaft are on the same end as the stabilizer bar end link mount. Notice that it is equipped with power steering. In addition it houses the front wheel bearings, brake rotors, calipers, and brake lines. 2, Wheel Nuts 70, Oil Once the spring is in the proper position, loosen and remove the hose clamp. It is much quicker to exchange your old trailing arm for a refurbished one. The trailing arms house the parking brake, brake calipers, and rotors. Fuel The dust caps are used to cover and protect the front wheel bearings. Then insert the arms into a special jig to verify that they are straight. Large tables are an excellent place to organize these pieces. THE RUGGED 40 SERIES TORQUE CONVERTER is composed of heavy gauge stamped steel to withstand the extreme rigors of rough applications. Housing 10: To remove the upper control arm, start by placing a jack securely under the lower control arm as support. *All work requires an appointment. The measurement should be .006 to .008 inch. 30, Sway Bar Bracket bolts (to Frame) 25 Flywheel This is how toe-out and toe-in are adjusted on the front suspension. Intake in/lbs Four bolts in the middle secure it. Insert a pickle fork between the trailing arm and the bearing support legs. Housing Cover High Quality Products. The weight and type of engine (small- or big-block) largely determines the spring rate of the particular car. This prevents them from loosening and backing out. This tool will seat the pulley onto the pump shaft. 80, Mount Bolts The movable face angle of all Comet asymmetric system drivers and drivens is 18 degrees, their "stationary" (opposing) face is 2-1/2 degrees and the Comet asymmetric belt angles likewise correspond. As with any major rebuild, you will need more than average mechanical ability and some specialized tools along with factory shop, component and assembly line manuals. Place the frame on four safety stands that are sturdy and protected with pieces of cardboard. 42: Install the rotors and calipers and tighten the wheel bearings as per the instructions in the shop manual. A professional can put the correct suspension settings back into your car. However, if this is not in your budget, at a minimum you need to replace the ball joints and the rubber bushings. 80 This part takes a lot of stress and should be closely inspected to ensure that it is in excellent condition before installation. Once the knuckle has been pushed into the ball joint stud, secure it with a 3/4-inch nut and torque to 45 ft-lbs. The upper control arm bushings are now fitted with new rubber units. Required fields are marked *. Be careful not to overtighten, as it will damage the roller bearings. 18 50, Cross Shaft Bolts Thanks guys. The thickest shim in your clutch pack (.045 inch) is used to ensure that the bottom part of the seal does not bottom out, which causes leakage. 21: To make the bushing installation easier, place all of the bushings in a freezer overnight. To take the desired measurements, refer to the top right photo on page 87. Use a hammer to strike the pickle fork to knock the trailing arm away from the bearing support. Filter Bypass Valve Once the spring has been correctly installed, install the lower control arm bump stop. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. 25: After the shaft and bushings are installed, screw the cap screws, lock washers and collars into place. Big-block cars use a different attaching method than small-blocks. The Fora platform includes forum software by XenForo. Install the outer bearing and follow that with a fl at washer. Specs. It is not diffi cult but care must be taken to avoid injury to yourself or others. It uses rubber bushings and washers to minimize noise in the car. Check and make sure you can turn the shaft by hand. These springs were installed on Corvettes built at the new Bowling Green assembly plant. 14: Loosen and remove the lower control arm retaining bolts and remove the lower control arm and spindle. It is much easier to do it this way. Place the frame in a low-traffic and well-lit area so it can be safely reassembled. Then unbolt the top of the lower ball joint and drill, cut or grind off the rivets to remove the ball joint. 3. Use a locking adhesive on the threads and torque each one to 60 ft-lbs. The relay rod connects to the steering box Pitman arm (lower left). Throughout the chapter on ram charging, air filters, [Click here to read more], Shortly after the birth of Corvette in 1953, a Russian immigrant named Zora Arkus-Duntov joined Corvette. The suspension undergoes a lot of stress, and this is the perfect time to rebuild or refurbish these parts before they are reinstalled. Filter 41: Re-pack the front wheel bearings and install them into each rotor along with the grease seals. The 3/4-inch inner camber bolt was torqued to 70 ft-lbs. It should not bind after installation. The new shock runs up the middle of the spring and is attached to the upper frame and the lower control arm. Place the new coil spring into the lower control arm seat and frame bucket. 24, Upper Control Arm, Shaft Bolts in/lbs, Drive Spindle Nut 100 (+ to Align Cotter Pin) Fax (972) 243-3828. When Chevrolet introduced the new Corvette in 1963 it was hailed as a technological breakthrough, and when 1968 rolled around the C3 was about as close as one could get to a spaceship on wheels. Removing Pitman arm from steering box 1,948 views Apr 5, 2018 Like Dislike Share Save Fun with cars - mostly Corvettes 640 subscribers Frame off refresh of a 1974 Corvette. Corvette "power assist" steering has long been a very effective tool in reducing steering effort while keep us in touch with road feel, which is why Corvettes were equipped with this type of power steering to begin with. With all the new parts installed, you want to have your Corvettes front suspension set to factory specifications. 29: Start the re-assembly by installing the lower control arms first, then install the upper control arms and shims and torque the mounting bolts and nuts to specs on both control arms. Install the lower washer and rubber bushing onto the shock shaft. After the bushings, ball joint, and steel shaft have been removed from the control arm, the shop inspects for cracks or other damage. Find Us. 90 120 Any accident damage or rust that has eaten through the frame has been cut out. Low fluid greatly increases the pressure it takes to turn the wheel and quickly burns out the power steering pump if oil is not added. Now with all of the parts, tools and manuals in hand, lets get started1963-1982 Corvette Front Suspension Rebuild: 01: Here are all of the components that Zip supplied for the front suspension rebuild: Springs, power steering pump, ram, valve, hoses, idler arm, drag link, tie rods, sleeves, control arm bushings, bumpers, stabilizer bar bushings, end kits, shocks, and all of the mounting hardware kits. Pitman to steering cross member nut Idler to pivot nut Idler to steering cross member nut 02 VW Jetta TDI 330K+ miles, 48-52 MPG 03 VW Jetta TDI (Wife Crashed it) 200K+ miles, 40-45 MPG 95 Silverado K2500 6.5L TD Ext Cab, 4x4 If you are not replacing the caliper, you can make a hook out of mechanical wire (or a coat hanger) and let the caliper and hose hang from the frame. Now you will have to support the inside of the control arm to keep it from collapsing. With the C3 rear suspension design, the differential is mounted to the center of the frame and two halfshafts connect to the rear wheels. The rear shock absorbers are attached to the trailing arms at the bottom and to the frame at the top. Lonestar Caliper Company offers a complete line of power steering parts, components, and systems for C2 and C3 Corvettes, including pulleys, power steering pump caps, power steering brackets and steering shaft couplings. Then, service the pump to "full" on the dipstick at operating temperature and you're good to go. Torque these bolts to 70 ft-lbs with a 5/8-inch socket. The bump stop is a triangle of rubber mounted to a metal bracket. You will see later why we did it this way. Here are some pics of what I am talking about. The shims will be installed later; do not put them in now. Plug Half-shafts connect the differential to the rear wheels. Congratulations! Notice how the end of the coil spring rests in the lower control arm. The 19681982 Corvette steering linkage was first used in the 1963 Stingray. Be sure to select the correct front spring for your particular model and/or application. Place the limited slip unit in the differential housing. It is critical to catch any imperfections on the workbench and not on the car. The upper shock bolts (5/8- and 11/16-inch nuts) were torqued 60 ft-lbs. 36: With the new steering linkage assembled, measure the length of one side of the old tie rod assembly. 31: Install the spindle onto the lower control arm and tighten the nut. Tie rod assemblies operate on the principle of the common turnbuckle. Rotate the Posi clutch pack unit (shown on a jig in step 4) until you have enough room to insert the washer. The larger the bars, the more taut the ride. The Eaton system uses four coil springs, while the Dana utilizes a conical Belleview spring to preload the clutch pack. This bolt has a 13/16- inch head. Depending on your driving style and the type of shock installed, expect to get 15,000 to 30,000 miles on a new set. 30, Torque Arm to Frame Use the same procedure on these bolts as discussed in step 2 above. 30, Mount Bolts 80, Connecting Rod Cap Use a 9/16-inch wrench to remove the four nuts that are located underneath the parking brake hardware. A large rubber bumper is attached to the lower control arm. All of the power steering hydraulic hoses are installed. Spark Lift them and spread the shoes to mount them on the upper pivot bolt. Our inventory selection includes new pitman arms and slotted hex nuts, along with pitman arm to steering box nuts with washers to fulfill your Corvette restoration needs. Two hydraulic hoses connect to the ram and provide fluid pressure to make the unit operate. This is a manual steering application, which is why power steering components are not seen in this photo. Tolerances of .005 or less are the runout target. Chevrolet added optional power steering to the Corvette's underpinnings beginning in 1963, encompassing an engine-driven pump, pitman arm control valve, pressure and return hoses, and a power ram to provide assistance in turns. These arms need to be moved up and down during the spring and steering knuckle installation. Big-block half shafts from 1968 to 1974 use 9/16 x 14 x 33164-inch bolts and heavy-duty caps. Corvette engine front accessory drive packages were revised over time as vehicle design changed. Snug but do not torque them at this time. You are looking for a clearance measurement of .005 to .010 inch. Two 9/16-inch nuts secure the links. In addition, Zip stands behind all of our Corvette parts with our "No-Hassle Guarantee" - That\'s customer service the Zip way! Third-generation Corvettes use a series of rods attached to the steering box and the suspension steering knuckles to turn the wheels. Heads Use a 24 or its equivalent to hold the upper control arm up out of the way as you install the rubber bumper. Reinstall the suspension with the same number of shims to return it to its previous setting. Two 7/16-13 x 214-inch bolts secure the upper control arm to the frame. Flywheel The clutch discs and their preload springs upgrade an 'open . The trailing arm in this 1969 convertible is being removed so it can be overhauled by Van Steel. We Mounted tires to make this job easier. This photo shows a typical pinion bearing with a crush sleeve between the inner and outer bearing. Place a floor jack under the spring and slowly lift the spring until you are able to attach a nut to the bottom of the end link bolt. This system works very well when the lines are properly connected and the seals have integrity. 30, Bracket to Torque Arm 30, Camber Cam Nut Once this nut is secure, your helper can exit his or her perch on the frame. 30, Axle Shaft to Diff.. Side Yoke :crazy: It says the lower ball joint nut should be at 70-95 lb-ft with a max of 125 when the slot is lined up for the cotter pin. The body was dropped off at the body shop for all the necessary repairs and painting. Master C2 and C3 Corvettes used the same idler arm from 1963-'82 for both manual and power steering applications. Does the new picture look ok as far as the shaft sticking thru the nut far enough? in/lbs, Stabilizer Bar Link nuts Cars equipped with a big-block require a firmer spring as does the F-41 sports suspension option. The fl at washer has a notch that matches the one on the spindle to prevent it from turning. If not, you will not be able to install the lower control arms. Slide the bushings onto the stabilizer bar and into place. 30: Install the upper control arm bumpers. The bolts screw into this retainer and you must take extra care not to strip the threads when you secure the steel shaft to the frame. For the best experience on our site, be sure to turn on Javascript in your browser. A large-diameter steering wheel and skinny, pizza-cutter tires reduced steering effort, but not by much. When they have separated, remove the ball joint nut and pull the control arm out of the spindle. 16: After the ball joint is removed, drill the mounting holes out with a 21/64 drill bit to accommodate the new mounting bolts. 50, Upper Ball Joint Nut New parts have been welded into place by a professional Corvette repair shop. Install a French lock that serves as a washer. The difference in pumps is more about pump reservoir shape, fittings and shaft type than anything else. Copyright 2023, Zip Products Inc All rights reserved. The steering knuckle spindle plays a crucial role in front suspension dynamics. The easiest way to prepare the differential for installation is to place it onto a floor jack. These systems leak at the control valve and they can also leak at the power ram. Low Price Guarantee. Farm tractors were even fitted with it. Tighten the 11/16-inch locking nuts to 50 ft-lbs. If you pull the pitman arm, it is sometimes possible to see the twist in the sector shaft splines. Housing 50 Add or remove shims that were installed in step 8 on page 105, depending on how far the measurement is from the desired specification. The front suspension is the perfect place to start reassembling the foundation of your C3. Organize and inventory your parts before starting the assembly process. 40: The stabilizer bar end link kits can be assembled and installed. Housing Torque the two front bolts to 70 ft-lbs with a 5/8-inch socket. Tap it several times with a mallet or hammer to make sure it is seated properly on the pinion shaft. Part #: A2327 Line: PTQ 67-69 Firebird/Camaro and 68-74 Nova, Skylark, Apollo, & Ventura Only 4. Grease and pack the inner and outer bearings with wheel bearing grease. The lower control arm shaft and bushings remove in the same way except you will need a 7/16-202 cap screw to install in the end of the shaft. Excessive steering effort was relatively negated during the first 10 years of Corvette production. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. They provided a better ride and reduced the unsprung weight of the rear suspension. Connecting Recheck the adjustment after putting 100 miles on the car. You will also need a shop, component and assembly manual for your year Corvette, a hydraulic jack, jack stand, and tools. Start by installing the control valve onto the end of the drag link. This helps keep critical parts within easy reach. Slowly lower the jack to see if the upper and lower control arms securely hold the coil spring in place. Caliper Your friends can now exit the frame. When Zora Duntov unveiled the independent rear suspension of the 1963 Corvette, he elevated the American sports car to a world class level. Water The clutch plate stack should set in and therefore be ready for service once the differential is installed in the car. Torque these bolts to 35 ft-lbs. The front wheels should have a toe-in of 1/8 to 3/8 of an inch. 60 Each outer end of the spring is connected to the rear of the trailing arm with a link. This helps break in the limited-slip differential before it is put into service. Flywheel The C3 rear suspension was an engineering breakthrough when introduced in 1963 on the C2. They spin it fifty times to the left and 50 times to the right. 90 1963 - 1982 Corvette Idler Arm C2 C3 Midyear NEW (Fits: Chevrolet Corvette) $44.00. Standard non-performance Corvettes are fitted with a front antiroll bar that is designed to provide a smooth ride. Pinion lock screw and washer4. The fourth VIN digit [Click here to read more], HOW TO RESTORE YOUR C3 CORVETTE: 1968-1982, Basic Engine Modifications to Improve C5 Corvette Performance (Part 7), 74 Final Assembly Steps of Your Big-Block Chevy Engine Rebuild, How to Rebuild Your GM Transmission: TH400 Transbrake Guide, Comparing Cylinder Blocks and Fasteners for Chevy Small Block Engines, Chevy Big-Block Performance: Lubrication System Guide, How to Replace the Rocker Panel on a 67-72 Chevy Truck, How to Rebuild Chevy and GM Axles: Step-by-Step, How to Build a Chevy Street Stock Engine for Circle Track Racing, Small-Block Chevy Dyno Tests: Cams & Valvetrain Performance, History of GM Automatic Overdrive Transmissions, How to Source Chevy Big-Block Cylinder Heads, Oil and Lubrication Systems Guide for Big-Block Chevy Engines, 1955-1996 Chevy Small-Block Performance Guide: Camshafts Manual (Part 5), The Ultimate Chevy Big-Block Parts Resource, How to Produce More Power in Your Chevy Small Block Engine, C5 Corvette Brake Upgrades to Improve Performance (Part 5), How to Remove the Dash from a 70-72 Chevelle, C2 Corvette Restoration by the Numbers: What to Look For. Start gathering various bits and pieces, such as small bolts and brake and fuel lines, and place them in your work area. The power ram shaft A-bracket attaches to the lefthand framerail. Phone (972) 243-3838. This marks the gears with the dye and shows your gear pattern. These parts reduce the unsprung weight of your front suspension and are just as strong as the stamped-steel factory parts. The 19801982 automatics use 12-mm x 1.75 x 10.9 x 35-mm bolts and 19801981 4-speeds use 12-mm x 1.75 x 10.9 x 80-mm bolts. If using a differential rebuilding kit, it includes a dye to help determine the gear mesh pattern. Other questions? Pinion thrust washers6. Torque Arm Throttle Cable Included No Yes Transfer Case Assembly Included . All of these components should be evaluated, inspected, and repaired or replaced as necessary. They perform an important function. Do not torque the end cap bolts on the shafts yet. Pump Cover Many Corvette part suppliers sell complete suspension components that have been refurbished. Each bolt has a wedge near the head (arrow) that prevents it from moving once the suspension has been mounted. Slowly rotate the gears to check for any obvious signs of one gear rubbing on another. This system greatly improved handling and ride and that is why it was installed on all C3 Corvettes. Tighten the nuts evenly on both sides and make sure the lock washers are crushed. This includes the upper and lower control arms, steering knuckle with brake rotor, installed wheel bearings, and coil spring. C2 Corvette Pitman Arm & Relay Rod (1963-1967) Books & Manuals Home 63-67 C2 Corvette Parts Steering Systems Steering Linkage Pitman Arm & Relay Rod 17 Items Show per page Sort By 1/2-20 Slotted Hex Nut Price: $1.99 SKU: BL-212 Add to Cart 53-62 Steering Drag Link & 63-76 Relay Rod End Plug Price: $8.99 SKU: SC-533 Add to Cart To reassemble the trailing arms, simply reverse the disassembly procedure discussed in Chapter 6. Oil There is one of each screwed to each sleeve so be careful and do not try to force a tie rod onto the new sleeve. Needless to say, if this type of deformation is noted, throw the gear away and purchase a new one. 80 If you find this problem replacing the bearings and shims should correct the issue. Whether you're maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Power Steering parts is unsurpassed. Shop 1968-1982 C3 Corvette Suspension Control Arm at Top Flight Automotive. Drop the end link into the opening at the rear of the trailing arm. Starting in 1963, the VIN denoted coupe or convertible and build sequence. 17-27, Steering Arm Nuts (888) 581-3838 Phone (972) 243-3838 Fax (972) 243-3828 HOURS M-F 9am - 5pm Sat - by appt follow us on Facebook Instructions for Removing and Reinstalling 65-82 Corvette Rear Spindles The following Special Tools are all but REQUIRED to do a proper job: Spindle Knocker (spindle removal tool) The upper control arm rubber bushing bolts should remain loose until the project has been completed. The ram mounts to the relay rod (right) and connects to a bracket on the frame on the drivers side. Do not overtighten. These bolts should be torqued to 30 ft-lbs and the tabs on the French locks need to be bent (shown). 95, Disc Brake Caliper The frame has now been completed and rolled outside for a final inspection. Remember to buy springs in pairs because each manufacturer has slightly different production methods that affect spring rate and height. A small retainer at the front of the lower frame holds both front lower control arm bolts in place. Any out-of-spec measurements cause an annoying vibration that can be felt throughout the vehicle. 70, Rear Press out the bushing into the socket. 25, Lower Reassemble the powdercoated arms. When you move the steering wheel left or right you are moving a control valve bolted to the pitman arm that directs hydraulic pressure to one side of the power ram (also known as a slave cylinder) at the drag link to assist steering effort. Caliper 17: On the lower control arm, remove the rubber bumper and mounting plate. 35, Differential Spring Bolts With the center of the spring secure, install the spring end links. Torque New ball joints with rubber or polyurethane bushings are included in the rebuild process. This puts the trailing arm in the correct ride height position and makes putting the half-shafts and strut rods into the car much easier. Cautiously tap the side shims into the case to avoid damaging the cast-iron shims. Whenever there is a need, want and use for a torque sensitive drive system device that is infinitely variable from engagement . 30 Dec . This process is the best for identifying any cracks. 2628 Views 4 Replies 2 Participants Last post by gtr1999, Dec 13 . Original-spec shocks have a service life thats at the lower range of this estimate, while premium aftermarket shocks last at the upper range. Add or remove shims to adjust the toe-in or toe-out of the rear suspension. Rod Cap Slowly raise the jack making sure the spring stays seated in the control arm. Particularly problematic with C2/C3 power steering systems is control valve adjustment and leak issues. 70, Lower Control Arm Shaft Bolts: These two methods are well described and documented in the service . (The front trailing arm bushings have already been installed here.). Rocker Our inventory selection includes new pitman arms and slotted hex nuts, along with pitman . Install the washer. After the shims have been installed, attach a dial indicator to the differential housing to check the gear backlash. 11: Loosen the upper control arm mounting bolts and carefully remove the shims. i just put agr box on and threads are just even with pitman and its tight. If restoration is your goal, your choice is limited to locating the correct casting for your original engine. However, if you are going to aggressively drive your Corvette or use it for autocross competition, install a front spring with a higher spring rate. We now have a rolling chassis ready . You can adjust the strut rods to change the rear suspension camber setting on your Corvette. JavaScript is disabled. Fill oil reservoir to proper level and let the oil remain undisturbed for at least two minutes. 60, Upper This Corvette reproduction pitman arm has been manufactured to original factory specifications using today's modern manufacturing techniques. This will ease installation. Install a cotter key through the hole and bend the two wires back to prevent the nut from coming loose (as you did on the lower ball joint). The most important change occurred in 1981 when the factory installed a composite rear leaf spring. The shock absorber is inserted from the bottom of the lower control arm and secured with two bolts in the front suspension.
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