c3 corvette pitman arm torque c3 corvette pitman arm torque

The standard front coil spring is rated at 474 pounds. Be careful because the spindle will only be attached at the bottom ball joint and it will try to flop down. Pump The Fora platform includes forum software by XenForo. It uses rubber bushings and washers to minimize noise in the car. The lower control arm has also received new ball joints and new bushings. The anti-roll bar has not been installed and is the only missing part in this photo. Zora was exactly what Corvette neededhe was very European, a trained engineer, and passionate about sports cars. Be careful to not over tighten them, as it will damage the roller bearings. A torque converter system concept of driver, driven and belt member, the opposing halves or sides of each member being unequal in angle. Attach the frame crosspiece to the differential with two 7/16-18 x 118-inch bolts and 7/16-inch lock washers. Simply reverse the disassembly procedure discussed in Chapter 6. Leave it alone. Pinion lock screw and washer4. 4 Items. This tab piece goes onto the side gear first, and then every other disc added to the stack does not have tabs. My assembly manual calls for the nut to be torqued to 120-160 pound feet. They lock the clutches and provide power to both wheels. Organize and inventory your parts before starting the assembly process. Put the dial indicator on zero; rock the ring gear back and forth to determine how much play it has while the pinion gear remains stationary. 25, Lower If oil is extremely foamy, allow vehicle to stand a few minutes with engine off and repeat above procedure. 45 As you raise the jack, position the upper ball joint into the spindle. The differential is solidly mounted to the frame and is connected to the engine with a driveshaft. Tie rod assemblies operate on the principle of the common turnbuckle. Torque these bolts to 100 ft-lbs. 30, Strut Rod to Spindle Support 75 (+ to Align Cotter Pin) You are looking for a clearance measurement of .005 to .010 inch. If your original differential is not making noise and does not show any evidence of abnormal wear, reinstall the old shims. I just did mine, and I busted a nut with my breaker bar to get it to 150 like you did, and it looks like that. THE RUGGED 40 SERIES TORQUE CONVERTER is composed of heavy gauge stamped steel to withstand the extreme rigors of rough applications. The suspension must have time to settle on the springs before these bolts are tightened. Congratulations! This cutaway of a C3 differential reveals the components to inspect when the rear case cover is removed. ft. Reconnect the power steering lines to the control valve. Make sure the sponge washer is installed. Check and make sure you can turn the shaft by hand. With all the new parts installed, you want to have your Corvettes front suspension set to factory specifications. We're working with technician Paul Taylor of Hot Rods by Dean in Phoenix, who is going to walk you through the C2/C3 power steering system. 50, Cross Shaft Bolts Outlet This marks the gears with the dye and shows your gear pattern. Oil This helps keep critical parts within easy reach. Be careful to not over tighten them, as it damages the roller bearings. Caliper Any accident damage or rust that has eaten through the frame has been cut out. 1-32878 Corvette Pitman Arm/3rd Arm Ball Stud. Largest Inventory. Oil Just try one with a different thread. Torque them to 35 ft-lbs. Some even include multistep adjustments to dial in the ride you want. Place the frame on four safety stands that are sturdy and protected with pieces of cardboard. However, if this is not in your budget, at a minimum you need to replace the ball joints and the rubber bushings. Do not overtighten this nut because the bearing could seize. The outer case material changed to aluminum in 1980 to reduce the weight of the rear suspension. Connect the anti-roll bar to the lower control arm via an end link on each side of the front suspension. Cautiously tap the side shims into the case to avoid damaging the cast-iron shims. Push a rubber bushing onto the upper shock strut until it seats against the frame. The frame has now been completed and rolled outside for a final inspection. 30, Sway Bar Bracket bolts (to Frame) 25 Pump Cover Laying them out on your workbench in the proper order will help you identify the correct placement of these parts during reassembly. Use a mallet to carefully tap the side bearings into the case. Use an adjustable micrometer to verify the thickness of any shim before installing it. Two U-shaped brackets that fit over two rubber bushings secure the antiroll bar to the frame. 33: Mount the idler arm to the other end of the drag link. 12 Notice where the relay rod is attached to the passenger-side idler arm sleeve. Then its removed from the jig and turned around to repeat this process in the opposite direction. 37: Mount the entire steering linkage assembly to the steering arms and Pitman arm. 30 VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. performance and installation facility here, 63-82 Pitman Arm To Steering Box Nut w/Washer. 2628 Views 4 Replies 2 Participants Last post by gtr1999, Dec 13 . You can now use the ball joint separator to separate the spindle from the lower control arm. 480 In-Lbs. This new design can be found in all 19801982 Corvettes. Use engine assembly lube to perform this task. Start engine and run only for about two seconds. Repeat this process on the other side. 13: With the jack securely in place under the lower control arm, slowly lower the lower control arm. Just be sure to dial them down after you are finished playing or your fillings might fall out. All of the light rust damage has been repaired. 40: The stabilizer bar end link kits can be assembled and installed. Supporting the center of the dash is critical so as to not crack or damage it [Click here to read more], General Motors, like all the other car manufacturers of the time, did not put much valuable information on the vehicle identification number (VIN) plate. Profile. Side bearings7. 50 Invert the arm in the press. The frame is light enough for two people to carry it to your work area for assembly. 80 If the hydraulic lines are not properly seated and tightened in the control valve and ram, they can leak. Distributor Because quality is so critical, Lonestar Caliper rebuilds all of its power steering pumps, rams, control valves and steering gears in-house. 50 Ensure proper installation with the diagram below. This prevents them from loosening and backing out. Torque 80 The ram mounts to the relay rod (right) and connects to a bracket on the frame on the drivers side. C3 rear trailing arms are made from boxed steel and welded for strength. You have a thread showing. in/lbs, Rear Spring to Carrier A large rubber bumper is attached to the lower control arm. Spark It is critical to catch any imperfections on the workbench and not on the car. These shims will have to go back in their same location to keep the front end aligned. Five of these discs have tabs. 40 Ft-Lbs. 60 After you have installed the first bushing, install the cross shaft into the arm. Shaft to Wheel Spidle Caliper Our inventory selection includes new pitman arms and slotted hex nuts, along with pitman . 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. Pinion gears5. The completed steering system looks like this unit underneath a 1972 Corvette. Insert a cotter key in the provided hole. Insert it through the control arm steel shaft from the top. Loosen it one quarter turn and install the cotter key. It is easier to install the lower adjuster and the spring first on the workbench. Water When draining the oil from the differential, check for a burning odor, which indicates overheating of the gears and case. 70, Rear Needless to say, if this type of deformation is noted, throw the gear away and purchase a new one. 65, Auto Then cut approximately a 1 slot into the pipe. The large block moves up and down the shaft as the steering wheel is turned. Refer to the Chevrolet Shop Manual or other authorized manuals for the correct assembly and torque information. The 19681982 Corvette steering linkage was first used in the 1963 Stingray. 30, Leaf Spring Anchor Plate 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. Pump Manifold On the Corvette, you have power assist whereby you have a manual type of steering gear box but the drag link is actually comprised of a hydraulic valve and cylinder. 45, Front Bumper Bolts Steering knuckle to lower ball joint: 90 Ball joint to control arm fasteners: 25 Upper control arm cross-shaft end cap bolts: 35-40 Upper control arm cross-shaft to frame: Lower control arm cross-shaft end cap bolts: 45-55 Lower control arm rear cross-shaft to frame: Lower control arm front cross-shaft to frame: Idler arm to frame: For power levels up to about 500 hp, theres really not much that needs changing, other than to [Click here to read more], Selecting a camshaft is one of the most important decisions youll face when building a high-performance small-block for street or bracket racing. A bit of a big-block famine occurred in the 1990s as racers, high-performance street enthusiasts, restorers, and boat builders sucked up every available big-block; recycled [Click here to read more], If you were to read this book without realizing that in almost every instance the goal Im trying to achieve is more horsepower, youd thinkand rightly sothat Im obsessed with airflow. Tap it several times with a mallet or hammer to make sure it is seated properly on the pinion shaft. Four bolts with 9/16-inch heads fasten both strut rods. 80, (Finger tight and align cotter pin hole.) Now you have a special control arm support tool. Use two 11/1616 x 7/8-inch bolts to attach the front caliper bracket and dust shield to the knuckle. Do not tighten the two bolts that secure the upper control arms rubber or poly bushings until the car is ready to be driven. This wasn't a GM exclusive. Clip off any excess wire with a pair of cutting pliers. For a better experience, please enable JavaScript in your browser before proceeding. If you use the original ring-and-pinion gear that was removed the fit does not require much adjustment. 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. Phone (972) 243-3838. Many Corvette part suppliers sell complete suspension components that have been refurbished. Remember to buy springs in pairs because each manufacturer has slightly different production methods that affect spring rate and height. Front Cover Lubricate all of the clutch discs thoroughly on both sides with GM Posi-Traction additive. Bearing Cap Remove the wheel, caliper and rotor. Use a large piece of pipe or something that is the same diameter as the seal. This illustration shows some but not all of the major parts in a Posi-Traction unit.1. With the C3 rear suspension design, the differential is mounted to the center of the frame and two halfshafts connect to the rear wheels. Excessive steering effort was relatively negated during the first 10 years of Corvette production. Now tighten all of the nuts. Carefully continue to tap the seal in place while moving the shim around to ensure that the gap is the same all around. Place the limited slip unit in the differential housing. 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. *All work requires an appointment. 24, Upper Control Arm, Shaft Bolts 75, Lower Shock Mount Bolt Three bolts fasten the steering box to the left side of the frame. Also install the gas tank at this time. Clutch pack guide8. Now position the jack under the control arm as you did before. Everything was of excellent quality and fit just as it should. Clip off the excess ends with a pair of cutting pliers. This process is the best for identifying any cracks. Thermostat Slowly raise the jack, while the upper knuckle ball joint opening is placed into the top control arm ball joint stud.