INSTALLATION INSTRUCTIONS FORREAR COMPOSITE MONOLEAF SPRINGS#31242-43, 31236-37 1967-81 Camaros & F-Bodies |
7490 -
These springs are designed to
be direct replacements for the 1970-81 Camaro or Firebird multi-leaf
applications. Slight modifications to
the spring pad and/or spring eyes will allow these springs to fit 1967-69
Camaro and Firebird with original equipment mono-leaf springs.
If spring is too thick for
axle mount, remove center bolt nut, gently pry ONE poly pad off bolt,
reinstall nut and tighten until it just contacts spring and on all others
remove lower rubber pad. Spring with pads should be ¼ to ½ inch thicker than
factory spring.
Install spring with rubber pads. If bolts are too short, replace with
7/16-20x1 ½ or 2” bolts and tighten equally.
On some Camaros or Firebirds,
the frame rails were narrower than the design of the spring bushings. The poly spring eye bushings may be sawed off
or turned off in a lathe to accommodate this discrepancy providing the spring
eye inner sleeve is cut approximately 1/16” longer than the bushings. Do this before installing bushings in spring
eye. On the other hand, fender washers
may be used to space spring shackles apart, providing the hole in washer is a
good fit to shackle.
Removal of Factory Steel
Springs.
1.
Raise the car by
the frame so that the rear axle can be independently raised and lowered.
2.
Support the rear
axle with a floor jack.
3.
Disconnect shock
absorber lower mounts.
4.
Loosen the
retaining bolt through the front spring eye.
5.
Unbolt the front
brackets from the body.
6.
Lower the axle
enough to remove the brackets and retaining bolts from the front eyes.
7.
Pry the parking
brake cable from the spring mounting plate retainer.
8.
Remove the U-bolt
nuts, spring plates, and the upper & lower spring pads.
9.
Remove the lower
rear shackle bolts. Remove the rear
springs.
Installation of Monoleaf
Replacement Springs.
1.
On installation,
install the front bracket to the spring eye, install the rear shackle, and bolt
the front bracket in place.
2.
Install the
U-bolts and replace the shock absorbers.
3.
Tighten the bolts
with the weight of the car on the springs.
4.
Torque the front
bracket mounting bolts to 25-30 ft/lbs and the front eyebolts to 75 ft/lbs.
5.
Torque the
U-bolts to 40 ft/lbs or until plate starts to bend, and the rear shackle bolts
to 50 ft/lbs.
Important
Notes:
Make
certain the spring center mounts are very tight. On some cars, although the pad mounts are
torqued properly, shims may be necessary.
If a spring slides inside this perch, it will break and is
not covered under warranty.