c3 corvette pitman arm torque

Before attempting to [Click here to read more], Choosing big-block cylinder heads depends entirely on the application. When properly assembled, these power steering systems perform reliably. Once the bolts have been secured, install the upper control arm bracket. 1-32878 Corvette Pitman Arm/3rd Arm Ball Stud. Low Price Guarantee. The completed differential now needs to be attached to the frame crossmember. 150 Slowly lower the jack to see if the upper and lower control arms securely hold the coil spring in place. (outer) However, if this is not in your budget, at a minimum you need to replace the ball joints and the rubber bushings. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 37: Mount the entire steering linkage assembly to the steering arms and Pitman arm. lower the weight of the car on it, roll the car, go back and torque the spring & arm bolts with the suspension loaded to the specified AIM torque rating. This job is easier if someone is helping. The C3 rear suspension was an engineering breakthrough when introduced in 1963 on the C2. Recheck the adjustment after putting 100 miles on the car. 165, Shock Absorber: Camshaft Sprocket 20 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. If it meets specifications, it is shot peened to remove all accumulated grime and paint. This new design can be found in all 19801982 Corvettes. 27: The power steering pump was badly leaking so we asked Zip to send us a brand new one. 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. Water 130, Rear Bolt If the hydraulic lines are not properly seated and tightened in the control valve and ram, they can leak. 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, Upper Control Arm, Shaft Bolts You are on the upper end of the torque range with your 150# reading. Place a solid bar such as a damaged pin (shown) on the driveshaft yoke. 16: After the ball joint is removed, drill the mounting holes out with a 21/64 drill bit to accommodate the new mounting bolts. The specialty rebuilders that have seen [Click here to read more], Dash Carrier Assembly Removal This is a good time to refurbish or replace the steel control arms. Use two 11/1616 x 7/8-inch bolts to attach the front caliper bracket and dust shield to the knuckle. Leave it alone. The Posi-Traction unit has small clutches that are stacked on each side of the springs; they are held in place with these springs. If it is not within this range, the assembly needs to be removed and a different-size shim installed. Notice that it is equipped with power steering. Rocker 27, Flywheel to Engine The lower control arm has a deep well that supports the bottom of the front suspension coil spring. If the threads engage the entire nut and you torqued to spec, you're good to go. The upper and lower control arms secure the coil spring. I will not describe them here. The spring should look like this when installed in its correct position. Because the system is external, everything is easy to access. Use an adjustable micrometer to verify the thickness of any shim before installing it. We will be focusing on the front suspension in this article and will be replacing all of the major components in a 1978 Corvette. The 19681982 Corvettes use a steel coil spring in the front suspension. Filed Under: C3 Corvette Restoration Guide, Chevy Tech Tips, The 700-R4 transmission first came into production in the early 1980s. 34: Install the new rubber insulators and sleeve into the steering ram frame mount. Contact us here24 hours a day 7 days a week. Flywheel Insert the lower ball joint stud into the opening on the steering knuckle. Now use a ball joint separator to loosen the ball joint from the spindle. Notice that these rotors have been matched to the spindle for trueness with White- Out. 80 55 60 Yoke. It is easier to install the lower adjuster and the spring first on the workbench. For a better experience, please enable JavaScript in your browser before proceeding. Now you have a special control arm support tool. Copyright 2023, Zip Products Inc All rights reserved. 20 The parts are then sent to the powdercoating shop to have their surfaces covered and protected. 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. It is fine. Gary 69 vert 350 M20-373's 72 coupe 350,TH400,336's. Reply . At the top of the box, an adjuster is used to tighten worn gears. 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. Both of the old bushings should now be out of the control arm. This configuration is why the small piece of wood was placed in the trailing arm to keep the ride height closer to factory specs. 80 Apply silicone lubricant before installing the seal gear into the housing. Once they are snug, go one-quarter turn more with a wrench. 80 i just put agr box on and threads are just even with pitman and its tight. 4 Items. Invert the arm in the press. The ball joint rivet heads are ground down flush and then chiseled out of the upper control arm with an air chisel. The old shaft protruded about 1/8" past the nut and the new one sticks out just a little past flush. Subtle changes were made to the rear frame to accommodate this new differential. Rod Cap In the pitman arm thread several members talked about removing and rebuilding their steering gear. Push the inner seal onto the spindle assembly. If your rotors are new and out of spec, return them to the vendor for a refund. Make sure that they are completely seated. The recirculating ball unit is attached to an arm connected to a relay rod. 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. In addition, Zip stands behind all of our Corvette parts with our "No-Hassle Guarantee" - That\'s customer service the Zip way! These control arms come ready for installation. Just be sure to dial them down after you are finished playing or your fillings might fall out. on the castle nuts I'm planning to use the torques specified in the AIM. Clip off any excess wire with a pair of cutting pliers. Teeth marks on the Posi- Traction case indicate that the bearings are worn and the pinion gear is hitting the case. Some even include multistep adjustments to dial in the ride you want. 80 Also do not tighten the trailing arm. 30, Leaf Spring Anchor Plate This is a good preventive maintenance procedure to makes sure the parts are not dry. 35 19:Install a 3/8-242 1/4 cap screw in one end of the shaft. Attach the frame crosspiece to the differential with two 7/16-18 x 118-inch bolts and 7/16-inch lock washers. 17: On the lower control arm, remove the rubber bumper and mounting plate. THE RUGGED 40 SERIES TORQUE CONVERTER is composed of heavy gauge stamped steel to withstand the extreme rigors of rough applications. 03: We are going to remove the entire steering linkage as one unit. performance and installation facility here, 63-82 Pitman Arm To Steering Box Nut w/Washer. Caliper The pump is connected to the power valve and the power steering cylinder. Outlet Insert it through the control arm steel shaft from the top. Pinion gears5. The steering box contains worm gears that turn the Pitman arm, which is attached to the bottom of the unit. 22: Coat the bushings and the shaft ends with white lithium grease. Now mount the stabilizer bar and brackets to the frame. 25: After the shaft and bushings are installed, screw the cap screws, lock washers and collars into place. Lower the car and turn wheels right and left on the ground. Start by installing the control valve onto the end of the drag link. Similar to a turnbuckle, there are right hand (RH) and left hand (LH) threaded connections at each end of the tie rod adjuster tube. Intake It is very important to understand the differences in these pumps and order the correct one for your application. 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. 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. 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. 42: Install the rotors and calipers and tighten the wheel bearings as per the instructions in the shop manual. Each outer end of the spring is connected to the rear of the trailing arm with a link. Now that the frame has been returned to your work area, reconfirm your factory frame measurements. This aluminum. Phone In Price USD $ 48.99 1953-1962 Each This is the perfect time to install the gas tank between the back frame rails. If you marked these parts during disassembly, re-torque the bolts to the same location. The front steering system connects to the spindle on each side of the car to provide steering to the front wheels. Grease and pack the inner and outer bearings with wheel bearing grease. This wasn't a GM exclusive. Reassemble the powdercoated arms. Just try one with a different thread. Part #: A2327 Line: PTQ You will see later why we did it this way. Use a 5/8-inch wrench to snug these 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. Step 1 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. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. The pitman arm bends away from the box as it goes down to the center link end. These springs were installed on Corvettes built at the new Bowling Green assembly plant. $14.75 shipping. Clutch discs9. Each part is cleaned, inspected for cracks, aligned, and powdercoated. 35, Brackets to Hub Carrier Also install the gas tank at this time. Increase engine speed to approximately 1500 rpm. Is your Pitman arm on upside down by chance? The leader in Corvette Parts parts since 1977. Flywheel When the ball joint is aligned, continue to raise the jack while pushing the ball joint stud through. They provided a better ride and reduced the unsprung weight of the rear suspension. Profile. Bolts Install ball stud shaft into pitman arm. It should not bind after installation. The seals tend to leak if they sit or have high mileage. 30, Torque Arm Step-3: Install Nut on Control Arm A 9/16x18x2532-inch bolt secures the rear lower control arm to the frame. (See Photo #16A.) 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. Distributor 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. Five of these discs have tabs. 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. Spark This cutaway of a C3 differential reveals the components to inspect when the rear case cover is removed. The measurement should be .006 to .008 inch. Service the pump with just enough fluid to submerge the pump inside the housing. Aftermarket suppliers offer a wide range of C3 Corvette shock absorbers. Laying them out on your workbench in the proper order will help you identify the correct placement of these parts during reassembly. 40: The stabilizer bar end link kits can be assembled and installed. Shown here are a front lower control arm (front) and a rear trailing arm (back). Secure and tighten all lug nuts. As you raise the jack, position the upper ball joint into the spindle. The ram (shown) is attached to the relay rod. It is much easier to do it this way. The relay rod also connects to the idler arm (far right). They lock the clutches and provide power to both wheels. 09: The stabilizer bar end links can be removed along with the stabilizer to frame bushings and brackets. These rubber bushing are strong enough to absorb the impact under most conditions. This will allow it to fit around the shaft and bushings. The design was so successful that it was carried over for the entire C3 production run with only minor changes. 65, Auto 70, Oil C3 rear trailing arms are made from boxed steel and welded for strength. 54.23 N-m. Years: 1984-1996. Front Mounting Bolt 65, Ball Joint Attachment Nut Install the side pins with a spring cup and then install the upper spring. The ram mounts to the relay rod (right) and connects to a bracket on the frame on the drivers side. The clutch plate stack should set in and therefore be ready for service once the differential is installed in the car. It connects the upper and lower control arms via two ball joints. When the ball joint stud threads are exposed, install and tighten the nut. With all the new parts installed, you want to have your Corvettes front suspension set to factory specifications. the power steering fluid whenever you change the transmission and rear axle lubrication, which should be roughly every 30,000 miles. Use a 9/16-inch wrench to remove the four nuts that are located underneath the parking brake hardware. Two 9/16-inch nuts secure the links. Corvette, 1963 thru 1982 View More. Also, the distance between the box and pitman arm on the old box was 1/2" and the new setup is 5/8". Place a dial indicator over the rotor to to verify rotor trueness. Dont be afraid to hit the heads forcibly because they are designed for this procedure. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. Add or remove shims to adjust the toe-in or toe-out of the rear suspension. If it doesnt, adjust the nut until the opening is located. Oil (888) 581-3838. . 12 This frame has been carefully placed on four safety stands and four large pieces of cardboard to protect the frame from any scratches. This marks the gears with the dye and shows your gear pattern. After you have installed the first bushing, install the cross shaft into the arm. 480 In-Lbs. 45, Front Bumper Bolts If oil is extremely foamy, allow vehicle to stand a few minutes with engine off and repeat above procedure. 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. As with the top control arm, the lower ball joint is bolted to the steering knuckle with one nut.

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