User Manual

Page 3
TROUBLE SHOOTING
Upon completion of installing the entire lift (front and rear) if the vehicle appears to sit unlevel go to
step 1 and record the AFTER measurements to verify the amount of lift obtained at each point. If the
vehicle does sit unlevel and it did not in sit unlevel in step 1, the following can be checked:
1. Be sure all of the polyurethane bushings were greased well so that they will not restrict the
spring’s movement.
2. Check the condition of the shackle bushings in the frame (if not replaced with new ones) to be
sure they are not worn, and if so, replace them with new polyurethane bushings, available from
Omix-Ada. (See step 4 for part numbers.)
3. Check the body bushings between the frame and the body to be sure they are not showing wear.
If so, Omix-Ada offers replacement polyurethane kits.
4. In order to be sure that the bushings are not restricting the spring from being at the correct ride
height, loosen (do not remove) the spring eye bolts. Then stand on the bumpers and bounce
the vehicle up and down vigorously to free up the bushings and then retighten spring eye bolts.
(Even if this was done in steps 6 and 11, this should be done again after the entire lift is installed.)
8. Unbolt each end of the rear leaf springs and remove both springs from vehicle. (If new shackle
bushings were purchased, grease and install them at this time) When installing the new springs
on 76-86 models, be sure to install them so that the end with smaller-eyes are toward the rear
bumper. On 55-75 models, install the rear springs in either direction.
(NOTE: It is important to
NOT tighten the spring eye bolts at this time. If springs are tightened,
with no load being applied on the springs, a false lift and stiff ride will result. These bolts will be
tightened later in step 11 once the vehicle is on the ground.)
9. While still supporting the rear axle with the floor jack, lower axle down to the leaf springs. Be sure
the tie bolt heads align and fit into the holes in the axle housing. Install the new u-bolts included
in this lift and torque to 80 ft.lbs. If new bump stop brackets were purchased, they should be
installed along with the u-bolts.
10. Install the new shocks and tires then lower vehicle down to the ground. Stand on the rear bumper
and bounce vehicle vigorously to help relieve any friction or binding. Tighten the spring eye bolts
at this time.
NOTE: After driving the first 50 miles, retorque ALL nuts, bolts and ESPECIALLY U-BOLTS, torque
again for another 100 miles and then check periodically thereafter.