Cadillac 60 Series 1963 Shop Manual page 52

CHASSIS SUSPENSION
4-29
for installation between the spring leaves when
original liners wear at the outer ends.
To install these replacement liner tips, it is
necessary to use a hardwood wedge 2-1/2 inches
wide, 5 inches long, and tapered from 1/8 inch to
3/4 inch thick in 2 inches of length. Proceed as
follows:
1. Remove spring rebound clips.
2. Raise rear of car until springs are in full
rebound position.
3. Mark off length of replacement liner tip on
main spring leaf, allowing 1/2 inch projection
beyond second leaf.
4. After placing a piece of sheet metal between
liner and spring leaf to protect leaf, pry first and
second leaves apart and insert wedge under liner
just beyond point where old liner is to be cut off.
NOTE: It is necessary to protect the spring
leaf because a small nick in the leaf from a
steel wedge could cause a point of fatigue and
may result in spring failure. Use a hardwood
wedge whenever possible.
5. Cut off worn end of original liner with a
hacksaw blade. Grinding off a 4 " section of the
back of the saw blade to 1/4 inch width will permit
sawing liner without spreading spring leaves too
far apart.
6. Install new liner tip with button end toward
axle and work out wedge, keeping liner tip in
position.
7. Repeat above operation at each of the two
upper liners in each rear spring.
26. Rear Leaf Spring
Removal and Installation
(Commercial Chassis)
a. Removal
1. Jack up car so that weight of body is en-
Fig. 4-43 Rear Leaf Spring Shackle
tirely off the spring and support axle housing with
adjustable stands.
2. Remove front shackle bolt nut and drive out
shackle bolt.
3. Disconnect shock absorber from " U " bolt
plate.
4. Remove rear shackle nuts and link, Fig.
4-43.
5. Remove " U " bolt nuts, washers, lower
spring plate, lower insulator retainer and in-
sulator pad.
6. Remove spring from rear shackle by r e -
moving shackle from frame or by driving spring
off shackle.
b. Installation
1. Install new bushings in spring eyes and in
shackle-to-frame mounting sleeves.
2. Install shackle on frame.
3. Install spring on lower shackle bolt.
4. Line up front spring eye in bracket on frame
and install bolt from inner side of frame. Install
nut, but do not tighten until car is lowered.
5. Install shackle link and shackle nuts.
6. Install insulator pad and retainer on top of
spring, with hole in pad and retainer over spring
center bolt.
7. Position center of spring under rear axle
housing bracket with spring center bolt located in
hole provided in bracket.
8. Install insulator pad, retainer, and " U " bolts
and install " U " bolt nuts and lock washer, torqu-
ing to 45 foot-pounds.
NOTE: Lower car before tightening " U "
bolts or rear shackle nuts. This permits rubber
bushings to take a permanent set, and assures
a more accurate torquing.
9. Connect rear shock absorber at spring " U "
bolt plate.
10. Tighten front eye bolt and rear shackle nuts
to 70 foot-pounds.