The spindle will need to be slightly clearanced to clear the lower shock once at ride height. Grind around 5/8″ up from the bottom of the spindle.

See the mark on the spindle for the area to clearance. Only need to take about 1/6″ of material.

Install the shock inserts, then the 1/2″ lower onto the lower plate and torque to 60 ft/lbs. This will not be accessible once installed on the lower control arm.

You can install the sway bar end links now for ease of installing the lower bolt, or install after mounting the lower plate to the lower control arm. We installed the end links before mounting the plate.

To install the shock, the upper portion must go in first. Hold the spindle away from the frame to gain enough clearance for the shock clear the control arm and the lip on the frame.

The upper clevis is offset for spring clearance. Ensure that the offset is pushing the eyelet of the shock towards the outboard (wheel) side of the car.

To install the lower mount, by pressing down on the lower control arm while holding the spindle away from the frame. Install the top two retaining bolts as the one next to the end link is very tight.

Next, lift up on the control arm to reinstall the lower ball joint and tighten the lower mount bolts. Tighten the two top mount bolts, and torque to 35 ft/lbs followed by the one on the side by the sway bar mount. The fourth hole is optional but recommended for additional strength.

Tighten the upper clevis next. You’ll need a 10mm wrench to keep the clevis in place. The eccentric washer will need to have the thin side towards the outside of the car to maximize spring to frame clearance. Torque the M14 nut to 50 ft/lbs.

These bolts all take a 13mm socket or wrench.

Completed unit, ready for ride height adjustment.

Before installing the upper sway bar end link, you’ll want to set final ride height. Loosen the jam nut and spring collar to desired height. The shocks ship with the spring only hand tightened so the spring doesn’t rattle during shipping. This should be near factory ride height though.

The car will need to be rolled or driven a very short distance to get the suspension to settle. Typically 100-200 ft should be plenty. Adjust ride height as needed and settle the suspension each time.

After driving on a four post lift or up on ramps, install the upper sway bar end link. The suspension will need to have the full weight of the car to properly adjust the end links. Position the sway bar at the desired height and adjust the end links accordingly. Tighten down, align the car and you’ll be ready for a new riding and/or handling early model C4 Corvette.

1. With the factory sway bar removed, install the rearward bolt on the thin part of the adapter bracket. Install both brackets hand tight.

2. Install the poly bushings on the sway bar making sure to lubricate the inside of the bushing very well.

3. Feed the sway bar through the cradle.

4. Place the forward most bolt in next. This bolt goes all the way to the frame. Make sure to place the provided washer between the gold bracket and the relocation bracket. This keeps the bushing bracket from pinching the sway bar bushings and limiting rotation.

5. Install the reward bushing bracket bolt. This image shows the washer that goes on top of the bushing brackets.

6. Torque down the 6 frame mount bolts until securely snug.

7. After the bushings are snug, grab the end of the sway bar and rotate the bar up and down. There should be some resistance to the bar. You want to make sure it doesn’t freely move up and down with little resistance or is overly hard to rotate the bar.

8. You’ll you need to remove the lower sway bar bushing in the control arm next. (instructions for this coming soon)

9. Install the aluminum lower sway bar bushings and the end links on the lower control arms only then bolt on your front wheels

10. Set the car down on ramps so you can adjust and install the upper bolt on the end links. The rearward most hole will be the softest setting and the inward most hole the stiffest. You may have to use the soft setting to clear the tie rod ends. Double check that all your bolts are tight and set the car on the ground.

11. Finally, turn the wheels full lock in each direction and check your endlink to tie rod end clearance. You may need to adjust the gold sway bar brackets to give your self more clearance at full lock.

To install the DK-200 plates, you’ll need to lift your Corvette in the air via jack stands or lift.

Remove exhaust if it interferes with the clearance of removing the bolts. Support the transmission with a trans or floor jack before removing bolts.

Remove the M12 course thread factory bolts using an open wrench above the transmission and a socket on the bottom side. Should be an 18mm wrench and socket.

Some models, seems to be only manual transmissions, need to slightly open the hole from 12mm to 1/2″ for the provided hardware. Automatics seem to have a larger hole or have wallowed out over time. You’ll need a 1/2″ drill bit 7″ long.

Install both 1/2″ fine thread 7″ bolts through the two hole plate with the smaller holes sliding them through the C-beam on through the tail shaft.

Before seating the bolts all the way up, place the top plate with stover nuts welded in on top of the c-beam.

You may need to use a rubber mallet to encourage them to seat all the way in. And start the bolts by hand or wrench.

Tighten up the two bolts alternating back and forth tighten each one a little at a time to ensure it seats properly. Torque to 80 ft lbs.

Leaving the jack under the transmission holding the c-beam in place, loosen the differential bolts and remove.

You may have to pry the c-beam and differential to line up the holes for the provided 9/16″ x 8″ grade 8 bolts. These holes will not need to be drilled out.

Place the bolts through the two hole flat plate and place up through the c-beam and through the differential. Bolts shown here compared to factory course thread metric bolts.

Place the top plate with welded nuts on top and start the bolts by hand or wrench.

When tighten bolts, we suggest tighten up a little at a time alternating bolts until snug. Torque the fine thread bolts to 110 ft lbs.

If all other components are in fair shape, your car should track nice and straight during hard acceleration. This kit should reduce side kick when launch the car hard.