09: The stabilizer bar end links can be removed along with the stabilizer to frame bushings and brackets. The old shaft protruded about 1/8" past the nut and the new one sticks out just a little past flush. JavaScript is disabled. This should be part of your routine maintenance check under the car. Thermostat Phone (972) 243-3838. Everything was of excellent quality and fit just as it should. Torque Arm Throttle Cable Included No Yes Transfer Case Assembly Included . However, cornering speed is greatly increased with bigger units. Cautiously tap the side shims into the case to avoid damaging the cast-iron shims. To take the desired measurements, refer to the top right photo on page 87. (outer) Move the gears back and forth to check for looseness and play from side to side. When the pump shaft is flush with the inner lip of the pulley, it is seated. Install a cotter key through the opening and bend back the two wires to prevent the nut from coming loose. Many Corvette suppliers offer bearing and clutch pack kits that make an overhaul procedure much easier. Differential 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). The kits include all of the necessary parts. Our performance and installation facility is open Monday-Friday from 8:30am-5:30pm (EST). The large block moves up and down the shaft as the steering wheel is turned. 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. If it doesnt, adjust the nut until the opening is located. A 9/16x18x2532-inch bolt secures the rear lower control arm to the frame. Remove the races and seals and clean the trailing arm in a parts washer to remove the grease and grit. Whether youre maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Power Steering parts is unsurpassed. Place the frame on four safety stands that are sturdy and protected with pieces of cardboard. Start by installing the control valve onto the end of the drag link. This marks the gears with the dye and shows your gear pattern. Driveshaft and Rear Axles, Lower Control Arm Shaft Bolts 30, Mount Bolts Use a mallet to carefully tap the side bearings into the case. The control valve screws onto the end of the draglink. Two hydraulic hoses connect to the ram and provide fluid pressure to make the unit operate. I just installed my new power steering box and pitman arm. 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. Coil springs can do a lot of damage if they pop out of the control arm. 4 Items. Cylinder 15, Upper Shock Mount Bolt Side bearings7. 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. Spray the flared mounting end with silicone to make installation easier. 80 Connecting 30, Torque Arm This will allow it to fit around the shaft and bushings. The clutch discs and their preload springs upgrade an 'open . Then install the nut and tighten until you get the proper drag on the nut (18 to 22 inch-pounds) on new gears. Do not torque the end cap bolts on the shafts yet. When taking a differential apart, be sure to mark the left- and right-side pieces. Five of these discs have tabs. In addition it houses the front wheel bearings, brake rotors, calipers, and brake lines. These systems leak at the control valve and they can also leak at the power ram. in/lbs, Carrier Front Support to "X" Member 70 The relay rod connects to the steering box Pitman arm (lower left). Then unbolt the top of the lower ball joint and drill, cut or grind off the rivets to remove the ball joint. The steering knuckle spindle plays a crucial role in front suspension dynamics. Tighten the control valve clamping bolt and assemble the ball stud to the Pitman Arm. Two 7/16-13 x 214-inch bolts secure the upper control arm to the frame. The good people at Zip Corvette Parts, 8067 Fast Lane, Mechanicsville, VA 23111, 1-800-962-9632, were able to supply us with every part we needed. 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. 50, Lower Replacement of this system is straightforward because Chevrolet made it so simple to service. Housing You can adjust the strut rods to change the rear suspension camber setting on your Corvette. Plug Slide the control arm steel bracket through the two bolts and thread on the 11/16-inch nuts. 20 Clamp 45, Front Bumper Bolts 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. In addition, Zip stands behind all of our Corvette parts with our "No-Hassle Guarantee" - That\'s customer service the Zip way! Place the control arm in a press and support the other end of the control arm shaft with a 1 11/16 socket. After the bushings, ball joint, and steel shaft have been removed from the control arm, the shop inspects for cracks or other damage. Nicks in the fittings and seats will cause leaks because there's a lot of pressure going on here. First start stacking a side gear with a clutch disc that has two tabs or ears on it. This system works very well when the lines are properly connected and the seals have integrity. Screw it on and line up the slot in the valve with the groove in the threads. 30, Bracket to Carrier 44: After the car is sitting back on the ground, you will need to torque the upper and lower control arm bushings, cap screw and collars. This won't happen if you pay strict attention to how the lines and hoses are routed and installed before taking the system apart. Grease and pack the inner and outer bearings with wheel bearing grease. 15 If not, you will not be able to install the lower control arms. 13: With the jack securely in place under the lower control arm, slowly lower the lower control arm. These bolts should be torqued to 30 ft-lbs and the tabs on the French locks need to be bent (shown). The new shock runs up the middle of the spring and is attached to the upper frame and the lower control arm. Check belt tightness and check for a bent or loose pulley. Remember the coil spring will be pushing down on the control arm with tension. Lift the trailing arm from the rear and place a 1 x 1-inch piece of wood into the same place that the shims go. Be careful to not over tighten them, as it will damage the roller bearings. Use a hammer to strike the pickle fork to knock the trailing arm away from the bearing support. The 3/4-inch inner camber bolt was torqued to 70 ft-lbs. Change the power steering fluid whenever you change the transmission and rear axle lubrication, which should be roughly every 30,000 miles. 11: Loosen the upper control arm mounting bolts and carefully remove the shims. Now tighten all of the nuts. Remember to do both the upper and lower control arm bushings. The front steering system connects to the spindle on each side of the car to provide steering to the front wheels. in/lbs, Rear Spring to Carrier When you disassembled the frame, you paid particular attention to how many shims were installed before removing them. 39: Coat the inside of each stabilizer bar bushing with white lithium grease. 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. Van Steel constructed this tool to spin the Posi-Traction unit on a jig that is mounted to a post. Shop 1968-1982 C3 Corvette Suspension Control Arm at Top Flight Automotive. 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. After the oil has been drained, remove the back cover on the differential. The design was so successful that it was carried over for the entire C3 production run with only minor changes. The third arm does the work of both an idler and pitman arm in a recirculating ball steering system. Water 55 The outer case material changed to aluminum in 1980 to reduce the weight of the rear suspension. 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. Arm Stud When the ball joint stud threads are exposed, install and tighten the nut. We call it power-assist because it provides hydraulic assistance to the Corvette's existing steering system. Pump Once they are snug, go one quarter of a turn more with your wrench. Depending on your driving style and the type of shock installed, expect to get 15,000 to 30,000 miles on a new set. Spark Corvette, 1963 thru 1982 View More. 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. Torque the bolts to 70 ft-lbs. 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. Housing Bolts (front) 55 Observe the coil spring and make sure it stays securely in its upper and lower wells. Toll Free Order Line. 19:Install a 3/8-242 1/4 cap screw in one end of the shaft. Oil 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. Inlet 60, Upper Clutch plates10. 60 Make sure the springs coil ends are positioned in their respective slots in the frame bucket and control arm. 24, Upper Control Arm, Shaft Bolts If the hydraulic lines are not properly seated and tightened in the control valve and ram, they can leak. Notice that it is equipped with power steering. 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. They start the process by disassembling the old parts. If the cotter key hole doesnt line up, adjust the nut until the hole is located. If restoration is your goal, your choice is limited to locating the correct casting for your original engine. 23: Place the control arm in the press and install one bushing using a 1 5/16 socket to press the bushing into place. 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. 25, Lower in/lbs, Carrier to Frame This saves a lot of time during the reassembly process when trying to locate the next part to install onto the frame. When this is done, the sway bar can be removed. 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. 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. Posi case2. Low Price Guarantee. The steering linkage must be assembled to the pitman arm, idler arm, and to the steering arms using the correct fasteners and assembly torques. Cut it to fit between the inside flange of the control arm. Turn the wheels (off ground) right and left, lightly contacting the wheel stops. 36: With the new steering linkage assembled, measure the length of one side of the old tie rod assembly. Do not tighten the nuts yet. Service the pump with just enough fluid to submerge the pump inside the housing. Outer 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. 165, Shock Absorber: Camshaft Sprocket 20 Note that a shim (.028 in this case) is below the inner bearing and the driveshaft yoke has been attached to the outer part of the pinion bearing. 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. 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. Use a 5/8-inch wrench to snug these bolts. Mounting Bolts Push the gasket to the back of the spindle. 50 35, Brackets to Hub Carrier The shock absorber is inserted from the bottom of the lower control arm and secured with two bolts in the front suspension. Pump The upper control arms are used to adjust the cars front suspension caster and camber settings. This system greatly improved handling and ride and that is why it was installed on all C3 Corvettes. in/lbs, Drive Spindle Nut 100 (+ to Align Cotter Pin) You can use the social sharing buttons to the left, or copy and paste the website link: https://www.chevydiy.com/c3-corvette-restoration-guide-suspension-differential-reassembly/. Main 34: Install the new rubber insulators and sleeve into the steering ram frame mount. Add or remove shims that were installed in step 8 on page 105, depending on how far the measurement is from the desired specification. This bolt has a 13/16- inch head. Refurbished units are fairly inexpensive and return a Corvettes steering to its original responsive feel. Free shipping on many items | Browse your favorite brands | affordable prices. 35, Differential Spring Bolts 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. The most important change occurred in 1981 when the factory installed a composite rear leaf spring. Pan to Crank Case That design remained virtually unchanged for the next 20 years. 54.23 N-m. Years: 1984-1996. (This will allow you to drive the car without doing any real damage to the front tires and suspension.) 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. A C3 Corvettes differential is the centerpiece of the cars rear suspension. Add or remove shims to adjust the toe-in or toe-out of the rear suspension. If they pass the inspection, send them to the powdercoating shop so their surfaces can be powdercoated to prevent deterioration. Check and make sure you can turn the shaft by hand. Any out-of-spec measurements cause an annoying vibration that can be felt throughout the vehicle. After the powdercoating has been applied to the control arm, it is returned to the assembly area. Similar to a turnbuckle, there are right hand (RH) and left hand (LH) threaded connections at each end of the tie rod adjuster tube. You are on the upper end of the torque range with your 150# reading. As a general rule, shock absorbers do not have a long life. The standard front coil spring is rated at 474 pounds. It must not slip because it can cause injury if it does. The lower control arm has a deep well that supports the bottom of the front suspension coil spring. They spin it fifty times to the left and 50 times to the right. A large rubber bumper is attached to the lower control arm. 75, Lower Shock Mount Bolt This is also a good time to steam clean the parts and repaint or powdercoat before reinstallation. 25 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. If you removed the calipers from the brake hoses, you will need to bleed the front brakes. *All work requires an appointment. Differential The carpet stops parts from bouncing under a table or into a small crevice. Thanks guys. We Mounted tires to make this job easier. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. The front suspension is the perfect place to start reassembling the foundation of your C3. Pressure Plate I don't think it's upside down. Water Fax (972) 243-3828. When all of the pressure is off the spring, pull the control arm down as far as it will go and remove the coil spring. 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. 38: The front shocks can now be re-installed. 27, Flywheel to Engine 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. in/lbs, Lower 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. speaking of torque specs in the AIM, mine seems to show 40-60 lb-in for the upper ball joint castle nut. Oil 150 The spring should look like this when installed in its correct position. The parts are then sent to the powdercoating shop to have their surfaces covered and protected. The ideal contact pattern (centered on the teeth) is the drawing in the middle. For the best experience on our site, be sure to turn on Javascript in your browser. Once the spring has been correctly installed, install the lower control arm bump stop. Recheck the side yoke endplay. In our case, we just need it to make the steering effort a little easier. About 18-inch pounds is common for this step. Be sure to select the correct front spring for your particular model and/or application. Flywheel C3 C4 C56 C56-A C59 C6 C66M-R CD4E Chrysler CIB5 Cruise-O-Matic . Yellow or white dye (or marking compound) is usually found in a differential kit. in/lbs, Stabilizer Bar Link nuts Any accident damage or rust that has eaten through the frame has been cut out. GM torque specs for the pitman arm nut is 120-160 ft-lb.2. Lift them and spread the shoes to mount them on the upper pivot bolt. Pan Drain Plug Vette. 33: Mount the idler arm to the other end of the drag link. $61.99 Each. This simple but effective design is very robust and gives long, trouble-free service when maintained properly. It is not necessary to return the same unit to your car. It is a little complex but works very well when adjusted correctly. Repeat above procedure until oil level remains constant after running engine. Place a solid bar such as a damaged pin (shown) on the driveshaft yoke. Once this nut is secure, your helper can exit his or her perch on the frame. The C3 AIM sheet for tie rod clamping indicates that when you tighten the adjuster tube There's no advantage to extra threads showing beyond the nut on any fastener. Pinion shaft3. 43: Lube the entire front suspension ball joints, tie rods, idler arm, power steering control valve, etc. Van Steel uses this square piece of aluminum cut to the proper specification to measure the distance between the two upper control arm brackets. With the center of the spring secure, install the spring end links. The body was dropped off at the body shop for all the necessary repairs and painting. Four 9/16-inch bolts fasten the half-shaft to the trailing arm bearing. Install the trailing arm into the slot in the frame. With the C3 rear suspension design, the differential is mounted to the center of the frame and two halfshafts connect to the rear wheels. Verify that each bolt has been properly installed and torqued to specifications by marking them with White-Out. 120 Heads performance and installation facility here, 63-82 Pitman Arm To Steering Box Nut w/Washer. Housing Cover Repeat this step on the opposite side. Flywheel Both are now ready to be installed into the frame. Place the new coil spring into the lower control arm seat and frame bucket. You can now use the ball joint separator to separate the spindle from the lower control arm. 30, Camber Cam Nut Shocks lose their effectiveness slowly, so keep this mileage in mind when you are budgeting for maintenance. 22: Coat the bushings and the shaft ends with white lithium grease. Confirm the drag or load on the pinion by using an inch pound torque wrench. Remove the parking brake hardware (reverse the procedure that starts in Step 3). 15: The upper ball joint can be removed by using a drill bit, chisel or die grinder to remove the rivets. In my opinion, this is money well spent. Torque these bolts to 70 ft-lbs with a 5/8-inch socket. 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. 21: To make the bushing installation easier, place all of the bushings in a freezer overnight. New clutches usually cure this problem. Place a dial indicator over the rotor to to verify rotor trueness. $14.75 shipping. 12 Filter Bypass Valve There's the 1963-'74 "long-neck" Saginaw pump, which is clearly different than the "canned-ham" 1975-'82 Saginaw pumps to follow. These arms need to be moved up and down during the spring and steering knuckle installation. 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. Fill oil reservoir to proper level and let the oil remain undisturbed for at least two minutes. 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 Carefully continue to tap the seal in place while moving the shim around to ensure that the gap is the same all around. 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 are fairly inexpensive and it is a good idea to install fresh bump stops when putting the front suspension together. Rocker Once the bolts have been secured, install the upper control arm bracket. Assemble the spring plate and put it into a vise. Manifold All of these components should be evaluated, inspected, and repaired or replaced as necessary. Here are some pics of what I am talking about. 30, Axle Shaft to Diff.. Side Yoke Then its removed from the jig and turned around to repeat this process in the opposite direction. Housing Drain Plug 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. Four bolts with 9/16-inch heads fasten both strut rods. Dec . This Corvette reproduction pitman arm has been manufactured to original factory specifications using today's modern manufacturing techniques. Now use a ball joint separator to loosen the ball joint from the spindle. After you have installed the first bushing, install the cross shaft into the arm. 20, Drain Plug Each part is cleaned, inspected for cracks, aligned, and powdercoated. Big-block half shafts from 1968 to 1974 use 9/16 x 14 x 33164-inch bolts and heavy-duty caps. The idler arm provides support to the steering system and is connected to the passenger side of the frame. 35 Two 3/8-24 x 7/8-inch bolts secure the steel shafts that are included on the refurbished upper control arms. 32: Now we can start assembling the steering linkage. They perform an important function. Visit our showroom to setup an appointment to have your Corvette tuned, accessorized, enhanced or more. Install the side pins with a spring cup and then install the upper spring. 30, Bracket to Torque Arm The rear transverse leaf spring and spring bolts have not been installed. Tap it several times with a mallet or hammer to make sure it is seated properly on the pinion shaft. Slowly rotate the gears to check for any obvious signs of one gear rubbing on another. 65, Auto 50 in/lbs To reassemble the trailing arms, simply reverse the disassembly procedure discussed in Chapter 6. 480 In-Lbs. 90 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. 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. Clutch When Zora Duntov unveiled the independent rear suspension of the 1963 Corvette, he elevated the American sports car to a world class level.
c3 corvette pitman arm torque
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