This system works very well when the lines are properly connected and the seals have integrity. Hand tighten until the bushings are slightly compressed. The springs push against the clutches with more force as the cars speed increases. Pressure Plate Anti Roll/Stabilizer Bar To Body. It should not bind after installation. Caliper Distributor Toll Free Order Line. One bolt holds these arms in place. Rotate the spring until the end rests against the lower control arm spring well dimple. 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. Outlet Teeth marks on the Posi- Traction case indicate that the bearings are worn and the pinion gear is hitting the case. Remove the wood when this is complete. If it doesnt, adjust the nut until the opening is located. Maybe I'll snap some pics tomorrow and post them. In addition it houses the front wheel bearings, brake rotors, calipers, and brake lines. Also install the gas tank at this time. 43: Lube the entire front suspension ball joints, tie rods, idler arm, power steering control valve, etc. Move the gears back and forth to check for looseness and play from side to side. Clutch 80 in/lbs, Jounce Bumper to Frame 65, Spring Link Bolt to Torque Arm.- 150 in/lbs 20 Install the ring gear onto the Posi unit with new Grade 8 bolts and lock washers. Insert the lower ball joint stud into the opening on the steering knuckle. The other side connects to the bearing support leg and the shock mount is pushed through the legs and the strut rod. Depending on your driving style and the type of shock installed, expect to get 15,000 to 30,000 miles on a new set. Then insert the arms into a special jig to verify that they are straight. Spray the flared mounting end with silicone to make installation easier. Large tables are an excellent place to organize these pieces. Power-assisted versions feature a hydraulic pump that is driven off the engine, and it pushes fluid into a ram that greatly reduces the steering effort. 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. 15, Lower Ball Joint Nut Subtle changes were made to the rear frame to accommodate this new differential. 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. Notice that these rotors have been matched to the spindle for trueness with White- Out. 27, Flywheel to Engine Secure it with a hose clamp around the center and then tighten the clamp enough to compress the spring plate so you can slip it through the window (shown). The carpet stops parts from bouncing under a table or into a small crevice. 36: With the new steering linkage assembled, measure the length of one side of the old tie rod assembly. Flywheel Be sure the cotter key hole lines up. Repeat above procedure until oil level remains constant after running engine. Flywheel Be careful because the spindle will only be attached at the bottom ball joint and it will try to flop down. Organize and inventory your parts before starting the assembly process. This car received a new steering knuckle, wheel bearings, and brake rotor. Caliper 50, Upper $61.99 Each. Set up several large tables so assembly parts can be laid out in their correct order. Ensure proper installation with the diagram below. The standard front coil spring is rated at 474 pounds. If you pull the pitman arm, it is sometimes possible to see the twist in the sector shaft splines. In our case, we just need it to make the steering effort a little easier. The ball joint rivet heads are ground down flush and then chiseled out of the upper control arm with an air chisel. Same spec as the grease zerks. Shot peen the rear trailing arm until all the paint and grime have been removed. Install the spindle dust shield gasket onto the spindle. Pump Cover If your Corvette was not equipped with power steering from the factory, you will have to change out or add to the crankshaft pulley to accommodate the power steering pump. 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. The lower shaft is installed in the same manner although you will have to make another longer control arm support. 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. Your objective here is to install fresh bearings, seals, clutch packs, and races to replace any worn parts in the differential. Even if you use the same shims in the same location, always take your completed Corvette to an alignment shop. Be careful; the seal is easily damaged. The fl at washer has a notch that matches the one on the spindle to prevent it from turning. Check to make sure hoses are not touching any other parts of the car particularly sheet metal and exhaust manifold. 45: The last thing you will need to do is to check the toe-in of the front suspension. For a better experience, please enable JavaScript in your browser before proceeding. I just installed my new power steering box and pitman arm. Let's get started. This helps break in the limited-slip differential before it is put into service. 12 Note: C4 - FRONT Bushing Clamp Bolts. 18, Door Hinge Bolts Make sure to keep the jack in place securely under the lower control arm. Two 9/16-inch nuts secure the links. Cylinder It also has the front and rear suspension and the differential. The difference in pumps is more about pump reservoir shape, fittings and shaft type than anything else. Just be sure to dial them down after you are finished playing or your fillings might fall out. New ball joints with rubber or polyurethane bushings are included in the rebuild process. The pitman arm bends away from the box as it goes down to the center link end. Lubricate all of the clutch discs thoroughly on both sides with GM Posi-Traction additive. The 1975-'79 "canned-ham" pump is very similar to the revised Saginaw pump used from 1980-'82. The large gray carpet remnant makes the reassembly process more comfortable and dropped parts are more easily found. This won't happen if you pay strict attention to how the lines and hoses are routed and installed before taking the system apart. The steering linkage must be assembled to the pitman arm, idler arm, and to the steering arms using the correct fasteners and assembly torques. Simply reverse the disassembly procedure discussed in Chapter 6. Excessive steering effort was relatively negated during the first 10 years of Corvette production. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Connect the anti-roll bar to the lower control arm via an end link on each side of the front suspension. Exhaust Four discs without tabs are on each side. 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. Both are now ready to be installed into the frame. The major mechanical components have now been correctly installed into your refurbished frame. This simple but effective design is very robust and gives long, trouble-free service when maintained properly. This is done with thin shims inserted between the frame and the control arms steel shaft. 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. However, if you are just going to use your car for cruising and not racing the factory parts work very well. However, cornering speed is greatly increased with bigger units. (888) 581-3838. Now that the frame has been returned to your work area, reconfirm your factory frame measurements. Fuel Keep each set together and mark them for each side along with either front or rear. Now install the new pump, new hoses, and then tighten the belt to specs. The specialty rebuilders that have seen [Click here to read more], Dash Carrier Assembly Removal 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. Dont be afraid to hit the heads forcibly because they are designed for this procedure. If your rotors are new and out of spec, return them to the vendor for a refund. Start gathering various bits and pieces, such as small bolts and brake and fuel lines, and place them in your work area. When Zora Duntov unveiled the independent rear suspension of the 1963 Corvette, he elevated the American sports car to a world class level. Big-block half shafts from 1968 to 1974 use 9/16 x 14 x 33164-inch bolts and heavy-duty caps. 80, (Finger tight and align cotter pin hole.) Particularly problematic with C2/C3 power steering systems is control valve adjustment and leak issues. 80 Thermostat Manifold When you service the pump with fluid, keep in mind as fluid gets hot it expands and can overflow out of the pump. Use a large piece of pipe or something that is the same diameter as the seal. Make sure the spring is properly seated in the control arm so it does not slip. 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. 17-27, Steering Arm Nuts Sometimes this sounds a lot easier than it actually is. The C3 AIM sheet for tie rod clamping indicates that when you tighten the adjuster tube Oil Push the inner seal onto the spindle assembly. Run the steering wheel lock to lock several times to bleed out air. Pump Rest the spring on a floor jack and raise it to the differential to attach it with the steel plate and four 13/16- inch bolts. This Corvette reproduction pitman arm has been manufactured to original factory specifications using today's modern manufacturing techniques. THE RUGGED 40 SERIES TORQUE CONVERTER is composed of heavy gauge stamped steel to withstand the extreme rigors of rough applications. 28: The new pump came with a pulley installation tool. Be careful to not over tighten them, as it damages the roller bearings. The easiest way to do this is to make a support using 1 3/4 or 2 pipe (fence post will work). Arm Stud 35, Differential Spring Bolts 45 Now use a ball joint separator to loosen the ball joint from the spindle. Several well-known Corvette specialty shops offer like-new components at a competitive price that includes a warranty. 1963-1982 Corvette Front and Rear Suspension Assembly. Aftermarket suppliers offer a wide range of C3 Corvette shock absorbers. 30, Torque Arm to Frame in/lbs, Rear Spring to Carrier 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. 480 In-Lbs. Lower the car and turn wheels right and left on the ground. 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). That way when the linkage is installed, the front end alignment will be close enough for you to be able to drive to your local Corvette alignment shop without doing any damage to the front end or tires. Dont forget to do this; its important. Flywheel in/lbs, Carrier to Frame Be prepared for differences in front accessory drive packages on small- and big-block Chevys from 1963-'82, which can affect the compatibility of parts and pulley alignment. There's no advantage to extra threads showing beyond the nut on any fastener. The rotor is now ready to be installed. If you are refurbishing these trailing arms yourself it is wise to include new bearings. 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. 30: Install the upper control arm bumpers. Each outer end of the spring is connected to the rear of the trailing arm with a link. 130, Rear Bolt The upper control arm rubber bushing bolts should remain loose until the project has been completed. 34 This saves a lot of time during the reassembly process when trying to locate the next part to install onto the frame. These two methods are well described and documented in the service manual for your car. In addition, Zip stands behind all of our Corvette parts with our "No-Hassle Guarantee" - That\'s customer service the Zip way! 70, Rear Tolerances of .005 or less are the runout target. These parts reduce the unsprung weight of your front suspension and are just as strong as the stamped-steel factory parts. This part takes a lot of stress and should be closely inspected to ensure that it is in excellent condition before installation. When the ball joint stud threads are exposed, install and tighten the nut. The easiest way to prepare the differential for installation is to place it onto a floor jack. Exhaust All of these components should be evaluated, inspected, and repaired or replaced as necessary. You can also kick it with your shoe to push it into its deep well. Water Use a 24 or its equivalent to hold the upper control arm up out of the way as you install the rubber bumper. Free shipping on many items | Browse your favorite brands | affordable prices. Repeat this process until you get the correct measurement. 1-32878 Corvette Pitman Arm/3rd Arm Ball Stud. Make sure the sponge washer is installed. If restoration is your goal, your choice is limited to locating the correct casting for your original engine. The block is attached to the Pitman arm gear that turns the steering system when it moves back and forth. Start by installing the control valve onto the end of the drag link. To take the desired measurements, refer to the top right photo on page 87. 41: Re-pack the front wheel bearings and install them into each rotor along with the grease seals. Shown here are a front lower control arm (front) and a rear trailing arm (back). 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. in/lbs The rods mount under the differential and connect to the trailing arms on the same bracket as the lower shock mount. Camber You will find the fit, finish and function will work superbly for your restoration. 12 Tighten the control valve clamping bolt and assemble the ball stud to the Pitman Arm. If your original differential is not making noise and does not show any evidence of abnormal wear, reinstall the old shims. 50 If you find this problem replacing the bearings and shims should correct the issue. Required fields are marked *. Ford used this Bendix-design "power-assist" steering design on a wide variety of vehicles ranging from the humble Falcon to the behemoth Lincoln. 25, Lower The suspension undergoes a lot of stress, and this is the perfect time to rebuild or refurbish these parts before they are reinstalled. 42: Install the rotors and calipers and tighten the wheel bearings as per the instructions in the shop manual. Then press the second bushing into the arm or onto the shaft. It has been said you can move the world with the power of hydraulics. Do not tighten the two bolts that secure the upper control arms rubber or poly bushings until the car is ready to be driven. Increase engine speed to approximately 1500 rpm. 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. Notice that it is equipped with power steering. in/lbs, Front: You might have to wait until the weight of the engine compresses the springs enough to install the links, or have some friends sit on the frame to help make the connection. The old shaft protruded about 1/8" past the nut and the new one sticks out just a little past flush. Posi case2. 40, Shifter Levers to Shafts Snug but do not torque them at this time. Get the best deals on Pitman & Idler Arms for Chevrolet Corvette when you shop the largest online selection at eBay.com. Pump Bolts They will be tightened and torqued when the completed car is sitting on its wheels and ready to drive around the block. As with the top control arm, the lower ball joint is bolted to the steering knuckle with one nut. Torque these bolts to 35 ft-lbs. 13906-C Denton Drive. Installation begins with a new power steering-specific pitman arm, which slips onto the sector shaft like this. Slide the bushings onto the stabilizer bar and into place. When the ball joint is aligned, continue to raise the jack while pushing the ball joint stud through. There's the 1963-'74 "long-neck" Saginaw pump, which is clearly different than the "canned-ham" 1975-'82 Saginaw pumps to follow. Starting in 1963, the VIN denoted coupe or convertible and build sequence. Carefully continue to tap the seal in place while moving the shim around to ensure that the gap is the same all around. Arm Cover 20, Joint to Upper Arm Place a floor jack under the lower control arm so it rests on the jack. 60 A new ball joint is installed and the steel shaft receives new rubber or poly bushings. Farm tractors were even fitted with it. The transverse leaf spring bolts to the differential and is connected to the rear suspension trailing arms. 65, Sway Bar Link Brackets: Final adjustment is complete when the brakes and new parking brake cables have been installed in the car. Transfer this measurement to the corresponding new tie rod assembly. You use shims to make it match the desired pattern. These springs were installed on Corvettes built at the new Bowling Green assembly plant. Main 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. Lay out the critical components of your front suspension assembly as shown. Pinion gears5. 54.23 N-m. Years: 1984-1996. Then, service the pump to "full" on the dipstick at operating temperature and you're good to go. Rocker Check belt tightness and check for a bent or loose pulley. The leader in Corvette Parts parts since 1977. Use a 1/2-inch-drive torque wrench with a 7/8-inch nut and torque it to 75 ft-lbs. :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. When lines are backward to the ram you steer left and the ram applies pressure right snatching the steering wheel out of your hands violently. With all the new parts installed, you want to have your Corvettes front suspension set to factory specifications. The C3 rear suspension was an engineering breakthrough when introduced in 1963 on the C2. Caliper Use a liberal application of silicone on the washer (shown) to make sure there are no differential oil leaks. Read more about our performance and installation facility here. Differential The strut rods attach to the differential bracket with an adjustable camber bolt with two reducing washers inside the bushing on the differential side only. Two 3/8-24 x 7/8-inch bolts secure the steel shafts that are included on the refurbished upper control arms. Congratulations! Make sure the guide pin on the spring aligns with the guide hole in the differential. Do not tighten the nuts yet. With the C3 rear suspension design, the differential is mounted to the center of the frame and two halfshafts connect to the rear wheels. This marks the gears with the dye and shows your gear pattern. Make sure it sits evenly on the lip of the housing then use a hammer to gently tap the seal into place. 90 the past. I will not describe them here. The upper and lower control arms should look like this once they have been installed. Pan Drain Plug 70 The lower control arm includes a steel shaft and is attached with two 7/16-20 x 1.-inch bolts at each end of the arm. in/lbs, Drive Spindle Nut 100 (+ to Align Cotter Pin) 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. IN VEHICLE C2/C3 CORVETTE STEERING GEAR ADJUSTMENT. The idler arm provides support to the steering system and is connected to the passenger side of the frame. For the best experience on our site, be sure to turn on Javascript in your browser. Plugs 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. I figger it ain't going no wheres. Pump Side bearings7. 30, Strut Rod Bracket to Differential 35 The Fora platform includes forum software by XenForo. (outer) Insert a pickle fork between the trailing arm and the bearing support legs. Place a long fl at bar onto the head of each bolt and hit the bar with enough force to push the head flush against the frame. Lonestar Caliper power steering pumps are not equipped with drive pulleys, which means you will need to use your existing pulley or order the right one for your application. The 19681982 Corvette steering linkage was first used in the 1963 Stingray. Bolts Master 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. Gary 69 vert 350 M20-373's 72 coupe 350,TH400,336's. Reply . The relay rod connects to tie rods on both ends, and those are attached to the steering knuckles. speaking of torque specs in the AIM, mine seems to show 40-60 lb-in for the upper ball joint castle nut. Use the same procedure on these bolts as discussed in step 2 above. To reassemble the trailing arms, simply reverse the disassembly procedure discussed in Chapter 6. Each bolt has a wedge near the head (arrow) that prevents it from moving once the suspension has been mounted. This would once again be a good time to solicit the help of a buddy to aid in its removal. 30, Leaf Spring Anchor Plate The 19681982 Corvettes use a steel coil spring in the front suspension. Torque these bolts to 100 ft-lbs. They are usually to 1 inch in circumference. Water Then balance the valve. You may have to use a small wrench on the upper shaft to prevent it from turning as you tighten the 9/16- inch nut. Observe the coil spring and make sure it stays securely in its upper and lower wells. Low Price Guarantee. 35 The antiroll bar end is attached to the lower control arm with a link. 50, Manual Housing Shaft to Wheel Spidle 55 Outlet 21: To make the bushing installation easier, place all of the bushings in a freezer overnight. The differentials are basically all the same inside, but you find some minor changes during an overhaul. Use engine assembly lube to perform this task. The kits include all of the necessary parts. The dust caps are used to cover and protect the front wheel bearings. 75, Lower Shock Mount Bolt Use a 9/16-inch wrench to remove the four nuts that are located underneath the parking brake hardware. Specs. Just try one with a different thread. Nicks in the fittings and seats will cause leaks because there's a lot of pressure going on here. ft. Reconnect the power steering lines to the control valve. Pinion thrust washers6. Once they are snug go one quarter of a turn more. Attach a nut to the bottom of the bolt using a 7/8-inch socket on the nut and a 13/16- inch wrench on the bolt head and torque it to 100 ft-lbs. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It uses rubber bushings and washers to minimize noise in the car. If your box has high mileage and exhibits free play, it should be exchanged for a refurbished unit with new gears and original equipment adjustments. Why tighten more?? 50, Lower The design was so successful that it was carried over for the entire C3 production run with only minor changes. Cylinder Manifolds This bolt has a 13/16- inch head. New clutches usually cure this problem. Original-equipment spring rates usually give the best ride if your only intent is cruising with your restored Corvette. Four bolts in the middle secure it. Four 1/2-inch or 9/16-inch bolts, depending on the year the car was built, fasten the brackets to the frame. 1963 - 1982 Corvette Idler Arm C2 C3 Midyear NEW (Fits: Chevrolet Corvette) $44.00. Thermostat (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) Install the screw and tighten to specs. Copyright 2023, Zip Products Inc All rights reserved. 45, Front Bumper Bolts Heads 15: The upper ball joint can be removed by using a drill bit, chisel or die grinder to remove the rivets. These bump stops play a very important role in protecting the suspension in case you hit an unexpected bump too fast and the suspension bottoms out. Apply some dye according to the kit instructions. Fax (972) 243-3828. Use an adjustable micrometer to verify the thickness of any shim before installing it. Push the gasket to the back of the spindle. This is the perfect time to install refurbished or rebuilt components. This is the perfect time to install the gas tank between the back frame rails. The suspension must have time to settle on the springs before these bolts are tightened. You can also potentially get hydraulic lines backward during installation from the control valve to the ram and steering becomes erratic quickly. Raise the differential and cross frame with the floor jack until you can secure it to the frame with two 5/8-inch bolts. My assembly manual calls for the nut to be torqued to 120-160 pound feet. 03: We are going to remove the entire steering linkage as one unit. They start the process by disassembling the old parts. specifications for 68-82 Corvettes, Front Wheel Bearings 25 Use two 11/1616 x 7/8-inch bolts to attach the front caliper bracket and dust shield to the knuckle. If you marked these parts during disassembly, re-torque the bolts to the same location. This aluminum. 70 Repeat this step on the opposite side. 65, Wheel Nuts Manifold Any accident damage or rust that has eaten through the frame has been cut out. ft. and install cotter pin. This differential has been assembled and is ready for installation. Two hydraulic hoses connect to the ram and provide fluid pressure to make the unit operate. 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. This can be corrected with proper adjustment at the control valve via an adjustment screw with the engine running and both front tires off the ground. The arms are robust but the bearings are prone to failure. performance and installation facility here, 63-82 Pitman Arm To Steering Box Nut w/Washer. About 18-inch pounds is common for this step. Use a long pry bar or long screwdriver to push the lower part of the spring into the lower spring well. Corvette engine front accessory drive packages were revised over time as vehicle design changed. If the cotter key hole doesnt line up, adjust the nut until the hole is located. Inlet Apply silicone lubricant before installing the seal gear into the housing. 26: Install the new ball joints into the arms and torque them to specs. The upper shock bolts (5/8- and 11/16-inch nuts) were torqued 60 ft-lbs. 23: Place the control arm in the press and install one bushing using a 1 5/16 socket to press the bushing into place. Vette. It is easier to install the lower adjuster and the spring first on the workbench. in/lbs, Carrier Front Support to "X" Member The Posi-Traction unit has small clutches that are stacked on each side of the springs; they are held in place with these springs. Heads The front steering system connects to the spindle on each side of the car to provide steering to the front wheels. You are on the upper end of the torque range with your 150# reading. If there is excessive play, add shims to eliminate it. 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.

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