4
350-500
70-81 Chevy Camaro
G-Comp Front Suspension
INSTRUCTIONS
© 2019, Speedway Motors, Inc.
sure they are parallel or “clocked” to one another then
tighten the 3/8”-24 x 2-1/2” pinch bolts and lock nuts.
Assemble the sway bar links as shown, leaving roughly
¼” of threads showing on either heim joint. Use the
1/2”-20 x 1-1/4” grade 5 bolts to secure the sway bar
link to the sway bar arm. Mount one of the lower links
into the bracket on the lower control arm using a 1/2”-
20 x 2-1/4” grade 5 bolt and secure it with the 1/2”-20
lock nut. Leave the bolt out of the lower link on one
side at this time. The second bolt/nut will be installed
after the ride height is set and the car is setting on level
ground. This will ensure that there is no preload on the
sway bar at ride height.
11. Install the brake kit
to the spindle per the
instructions included with your brake kit. Note: For
recommended part numbers please visit our website
or contact one of our tech experts.
12.
Align the subframe:
Before installing the front
sheet metal, you must first make sure the subframe is
aligned with the body. Start by setting the toe to zero
and making sure the tires are perfectly straight.
Note:
this is easily accomplished with the tires removed and
a 2’-3’ long piece of angle iron clamped to the brake
rotor. Measure the distance between two pieces, both
in the front, and in the rear. Adjust the tie rod length
until the distance is the same. Now measure the wheel
base on both sides of the car. If they are different,
you must loosen the body bolts and slightly adjust the
subframe as needed.
13. Install the engine and transmission.
The G-Comp
sub-frame was designed to use stock type GM motor
mounts (910-18012) or Speedway’s Prothane mounts
(910-18015).
14.
Install
the core support, radiator, grill, and fenders.
All accessories and other components can now be
installed.
15. Alignment.
The lower control arms should be
level, with all the weight on the car. To adjust the ride
height, take the weight off the suspension and turn
the threaded adjusters on the bottom of the coil over
shocks. Turning the adjusters clockwise will raise the
ride height. Once the ride height has been set, place
the car back down on level ground. Adjust the free
heim end on the sway bar link so that it lines up with the
bracket in the lower control arm. Keep adjusting the
heim end until the remaining 1/2”-20 x 2-1/4” grade 5
bolt
Set the alignment to the following initial settings:
Caster = 5 °
Camber = negative .25°-5°
Toe in = 0''-1/8'' Toe Out
16.
Caster adjustments are made by changing the
caster inserts. The caster inserts are identified with
numbers indicating the distance of the hole from the
center of the insert in 1/8” increments.
#1 = 1/8” #2 = 1/4” #3 = 3/8”
The inserts can be reversed to move the hole in front of
or behind center for a total range of ¾”.
17.
Camber is adjusted using the included A-arm
shim plates. Additional shim plates can be purchased
separately if desired under Speedway Part # 917-
21005. These are available in thicknesses ranging from
1/8” to 1/2".
