Torque them to 30 ft-lbs. New ball joints with rubber or polyurethane bushings are included in the rebuild process. (You can also use a large punch or another piece of solid metal.) Backlash occurs when you take your foot off the throttle; you hear a clunking noise coming from the rear of the car. Tighten the control valve clamping bolt and assemble the ball stud to the Pitman Arm. We take orders in our showroom or you may call your order in over the phone and we will prepare your items in advance so you do not have to wait. The C2/C3Corvette has two identical tie rod assemblies that connect the left and right steering arms to the steering relay rod. You will notice that there are both right and left hand threads on the tie rods. All of the light rust damage has been repaired. The relay rod also connects to the idler arm (far right). Filed Under: C3 Corvette Restoration Guide, Chevy Tech Tips, The 700-R4 transmission first came into production in the early 1980s. Lower the car and turn wheels right and left on the ground. Corvette engine front accessory drive packages were revised over time as vehicle design changed. This will allow it to fit around the shaft and bushings. Three basic types of Saginaw power steering pumps were used in C2 and C3 Corvettes. :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. 15 Bolts This configuration is why the small piece of wood was placed in the trailing arm to keep the ride height closer to factory specs. 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). Set up several large tables so assembly parts can be laid out in their correct order. Use the same procedure on these bolts as discussed in step 2 above. 55 Five of these discs have tabs. However, if this is not in your budget, at a minimum you need to replace the ball joints and the rubber bushings. The easiest way to do this is to make a support using 1 3/4 or 2 pipe (fence post will work). Move the gears back and forth to check for looseness and play from side to side. Adjusting the backlash is the best way to eliminate gear noise. Some even include multistep adjustments to dial in the ride you want. 27, Flywheel to Engine To start, place a pair of locking pliers on one end of the leaf spring. 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. Comet Torque Converter Clutches & Parts for Go Karts & Mini Bikes If using a differential rebuilding kit, it includes a dye to help determine the gear mesh pattern. 02: Jack the front of the Corvette up and let the front suspension hang. Flywheel Check belt tightness and check for a bent or loose pulley. 17: On the lower control arm, remove the rubber bumper and mounting plate. 28, Upper Control Arm to Frame It uses rubber bushings and washers to minimize noise in the car. This prevents them from loosening and backing out. The arms are robust but the bearings are prone to failure. 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 Each bolt has a wedge near the head (arrow) that prevents it from moving once the suspension has been mounted. Remove the races and seals and clean the trailing arm in a parts washer to remove the grease and grit. Use a 9/16-inch wrench to remove the four nuts that are located underneath the parking brake hardware. Install the ring gear onto the Posi unit with new Grade 8 bolts and lock washers. Universal Gather all necessary parts that need to be installed onto the frame. The pitman arm bends away from the box as it goes down to the center link end. Attach the frame crosspiece to the differential with two 7/16-18 x 118-inch bolts and 7/16-inch lock washers. This is a good time to refurbish or replace the steel control arms. 18, Bracket Bolts SAFETY NOTE: To minimize any danger, you may want to use a coil spring compressor tool available at any tool rental or auto parts store to help with the coil spring removal. 12 Find Us. Shot peen the rear trailing arm until all the paint and grime have been removed. It connects the upper and lower control arms via two ball joints. Place a solid bar such as a damaged pin (shown) on the driveshaft yoke. Increase engine speed to approximately 1500 rpm. 32: Now we can start assembling the steering linkage. If you have someone stand on the upper control arm during this procedure, installing the steering knuckle is easier because the suspension is being compressed from above and below. Cars equipped with a big-block require a firmer spring as does the F-41 sports suspension option. Filter Bypass Valve Slowly rotate the gears to check for any obvious signs of one gear rubbing on another. You won't even need one quart of power steering fluid to fill the system. Leave it alone. Note: C4 - FRONT Bushing Clamp Bolts. Pan to Crank Case 35 35, Differential Spring Bolts 50, Manual The relay rod connects to the steering box Pitman arm (lower left). Insert the lower ball joint stud into the opening on the steering knuckle. This car received a new steering knuckle, wheel bearings, and brake rotor. Great Prices. The bolts that you bagged and tagged when you removed this unit should be the correct size. This saves a lot of time during the reassembly process when trying to locate the next part to install onto the frame. Let's get started. All new pumps come minus the pulley so you will need to use a puller such as this to remove the old pulley from the pump without damage. 70 Pump Cover Now mount the stabilizer bar and brackets to the frame. http://www.chevelles.com/forums/album.php?albumid=2153&pictureid=21505, http://www.chevelles.com/forums/album.php?albumid=695&pictureid=6156, http://www.chevelles.com/forums/album.php?albumid=428&pictureid=4468, http://www.chevelles.com/forums/album.php?albumid=826&pictureid=7810, http://www.chevelles.com/forums/album.php?albumid=834&pictureid=7834. The front suspension is the perfect place to start reassembling the foundation of your C3. Water Clutch pack guide8. 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. Make sure you have the correct bolts. Use a liberal application of silicone on the washer (shown) to make sure there are no differential oil leaks. A large rubber bumper is attached to the lower control arm. 70, 1/2" Bolts - 80 130, Rear Bolt 60, Control Arm front Pivot Bolt In my opinion, this is money well spent. Install pinch bolt being certain that it aligns properly with the machined slot in the relay rod. Raise the differential and cross frame with the floor jack until you can secure it to the frame with two 5/8-inch bolts. Cars that are equipped with FTL and big blocks are fitted with larger front bars and rear anti-roll bars to help balance the handling. The Fora platform includes forum software by XenForo. 19:Install a 3/8-242 1/4 cap screw in one end of the shaft. If your rotors are new and out of spec, return them to the vendor for a refund. The ball joint rivet heads are ground down flush and then chiseled out of the upper control arm with an air chisel. The front steering system connects to the spindle on each side of the car to provide steering to the front wheels. Notice how the end of the coil spring rests in the lower control arm. Both of the old bushings should now be out of the control arm. The bump stop is a triangle of rubber mounted to a metal bracket. The outer case material changed to aluminum in 1980 to reduce the weight of the rear suspension. 150 Spark The lower control arm has also received new ball joints and new bushings. The second way is to do it in the car but you must remove the pitman arm and take torque measurements by placing a torque wrench on the steering wheel hub and measuring steering gear torque through the steering column. Trailing Arm Bolt Question? | Corvette Forum : DigitalCorvettes.com THE RUGGED 40 SERIES TORQUE CONVERTER is composed of heavy gauge stamped steel to withstand the extreme rigors of rough applications. Place a floor jack under the lower control arm so it rests on the jack. One bolt holds these arms in place. In our case, we just need it to make the steering effort a little easier. This is a good preventive maintenance procedure to makes sure the parts are not dry. Big-block cars use a different attaching method than small-blocks. 32878 - 53-62 Pitman Arm/3rd Arm Ball Stud. - Corvette Parts Worldwide POWER STEERING CONTROL VALVE INSTRUCTIONS - zip-corvette.com At the top of the box, an adjuster is used to tighten worn gears. It is very important to understand the differences in these pumps and order the correct one for your application. Step-3: Install Nut on Control Arm A 9/16x18x2532-inch bolt secures the rear lower control arm to the frame. Install the nut and tighten it until the hub barely turns. Four bolts in the middle secure it. Then insert the arms into a special jig to verify that they are straight. The other side connects to the bearing support leg and the shock mount is pushed through the legs and the strut rod. They are attached to the frame between the upper control arms with one bolt. Reassemble the powdercoated arms. Exhaust Once they are snug go one quarter of a turn more. If you marked these parts during disassembly, re-torque the bolts to the same location. When installing the new power steering system, begin with all new components and fresh fluid. 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. Secure the lower shock with two 1/2-inch bolts and torque to 35 ft-lbs. Intake 45: The last thing you will need to do is to check the toe-in of the front suspension. This pitman arm isused on all 1958-1964 power steering set-ups and the 1958-1962standard steering set-ups. Installation begins with a new power steering-specific pitman arm, which slips onto the sector shaft like this. With the center of the spring secure, install the spring end links. The carpet stops parts from bouncing under a table or into a small crevice. Third-generation Corvettes use a series of rods attached to the steering box and the suspension steering knuckles to turn the wheels. Shocks lose their effectiveness slowly, so keep this mileage in mind when you are budgeting for maintenance. 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. A professional can put the correct suspension settings back into your car. When this is done, the sway bar can be removed. 18: To remove the control arm bushings, start by removing the end cap bolts, lock washers and collars. Add the right rear bearing support to the unit. These systems leak at the control valve and they can also leak at the power ram. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. The upper shock bolts (5/8- and 11/16-inch nuts) were torqued 60 ft-lbs. The ideal contact pattern (centered on the teeth) is the drawing in the middle. The fluid pressure reduces the effort it takes to turn the steering wheel. The ram mounts to the relay rod (right) and connects to a bracket on the frame on the drivers side. Housing to Engine Trestle Systems 2470 Island Dr, Suite 308 Spring Park, MN 55384 Same spec as the grease zerks. Only because there aren't any threads protruding past the nut and the arm is further from the box than it was on my old box. The box output shaft isn't sticking out past the nut as much as the box I removed. If the control valve is out of adjustment too much pressure will be applied in one direction or the other and steering will pull left or right. Once the spring is securely in both wells, slowly raise the jack to prevent the spring from popping out of the upper and lower spring wells. A piece of wood or a half piece of pipe is placed on the inside of the control arm to keep the arm from bending while the bushings are being pressed into the control arm. 35 Then balance the valve. 41: Re-pack the front wheel bearings and install them into each rotor along with the grease seals. The clutch discs and their preload springs upgrade an 'open . Rocker Van Steel constructed this tool to spin the Posi-Traction unit on a jig that is mounted to a post. Use a large piece of pipe or something that is the same diameter as the seal. Install the rear brake rotor over the hub and check it for runout to verify that the rotor and bearings are within factory tolerances. 30: Install the upper control arm bumpers. *All work requires an appointment. $61.99 Each. C3 Corvette Pitman Arm (1968-1982) Pinion gears5. Add a washer and use a socket and ratchet to tighten the 9/16-inch nut onto the shaft. Add or remove shims that were installed in step 8 on page 105, depending on how far the measurement is from the desired specification. Install ball stud shaft into pitman arm. 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. Do not tighten the upper and lower control arm bushing bolts yet. The differential is solidly mounted to the frame and is connected to the engine with a driveshaft. For the best experience on our site, be sure to turn on Javascript in your browser. The body was dropped off at the body shop for all the necessary repairs and painting. 43: Lube the entire front suspension ball joints, tie rods, idler arm, power steering control valve, etc. Thermostat The idler arm provides support to the steering system and is connected to the passenger side of the frame. The most important change occurred in 1981 when the factory installed a composite rear leaf spring. Do not tighten the two bolts that secure the upper control arms rubber or poly bushings until the car is ready to be driven. Fuel Torque specifications for 68-82 Corvettes FT/LBS (Unless specified) Front Suspension: Rear Axle: Front Wheel Bearings 12 Differential Cover Bolts 50 Upper Ball Joint Nut 70 Driveshaft to Pinion Flange 15 Lower Ball Joint Nut 90 Differential Front Mounting Bolt 65 Ball Joint Attachment Nut 28 Steering Arm to Spindle 70 Brake System: New parts have been welded into place by a professional Corvette repair shop. 12: Now remove the retaining bolts and take the upper control arms out. Also do not tighten the trailing arm. PDF COMET INDUSTRIAL PRODUCTS - Comet Clutches Tolerances of .005 or less are the runout target. 06: Disconnect the idler arm bracket from the passenger side of the frame and then use the tie rod separator to remove the control valve stud from the Pitman arm. Tie rod assemblies operate on the principle of the common turnbuckle. 1963-1982 Corvette Front Suspension Rebuild Place the control arm in a press and support the other end of the control arm shaft with a 1 11/16 socket. Many Corvette suppliers offer bearing and clutch pack kits that make an overhaul procedure much easier. 1963 - 1982 Corvette: Technical Article: In-Vehicle Corvette Steering Input from the steering gear box actuates the hydraulic valve to make the cylinder act in the direction you chose. Ball Joint Torque Specs - DigitalCorvettes.com Corvette Forums 80 65, Sway Bar Link Brackets: These arms need to be moved up and down during the spring and steering knuckle installation. The Eaton system uses four coil springs, while the Dana utilizes a conical Belleview spring to preload the clutch pack. . Subtle changes were made to the rear frame to accommodate this new differential. Loosen it one quarter turn and install the cotter key. 70, Oil 26: Install the new ball joints into the arms and torque them to specs. Farm tractors were even fitted with it. For autocross or track day events, set the shocks on the firmest setting as this provides the best handling. To take the desired measurements, refer to the top right photo on page 87. Your completed front suspension should look like this unit, which is installed on a 1980 Corvette. Four 9/16-inch bolts fasten the half-shaft to the trailing arm bearing. 70, Rear The lower control arm has a deep well that supports the bottom of the front suspension coil spring. 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. in/lbs, Rear Spring to Carrier Also check the oil for any metal fragments, which tell you a gear tooth might be chipped or broken. Then install the nut and tighten until you get the proper drag on the nut (18 to 22 inch-pounds) on new gears. Push the spring up into the upper control arm spring well in the frame.
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