Jeep UNIVERSAL CJ-2A - Page 247

s
SPRINGS AND SHOCK ABSORBERS
early 195 7 production, are anchored solidly in the
frame br ackets and spring eyes , and the oscill ation
is taken between the threads of the U - shackle and
the inner threads of the bushings .
On Mode ls CJ-2A , C]-3A, and ea rly production of
Models C] - 3A, CJ-3B, C] - 5, and CJ -6, six bush-
ings are used with right-hand threads and two with
left-hand threads. Th e right-hand threaded bush-
ings have plain hexagon heads . The left-hand
bushings have a groove around the heads.
The t\vo left-hand threaded U-shackles are identi-
fied by a small forged boss on the lower shank of
the shackle . They are used at t he left front spring
and the right rear spring with the left-hand thread-
ed end DOWN at the spring eye . The left-hand
threaded parts have been cancelled in the produc -
tion of Models DJ-3A, C]-3B, CJ -5 and CJ-6. All
later production vehicles, up to early 1957, us e
all right-hand threaded parts.
When replacing shackles and bushings on these
vehicles, examine the parts carefully for parts of
the same type removed must be reinstalled . A
ri
ght - hand threaded bushing cannot be installed
satisfactorily after one having left-hand threads
has once been installed .
U -shackle:> are installed with the bushing hexagon
heads at the outside of the frame.
10016
FIG. 307-SPR I NG PIVOT BOLT
246
. 10795
FIG. 306- REAR SPRING
AND SHOCK
ABSORBER -
Cj-3B, Cj-5, CJ -6
!- Bra c ket
2- Bu s hin g
3- W
as her
4- L oc k N ut
5- Nut and Lockwashc r
6- Axle
Bumper
7- B olt
8- Sp rin g Clip
9 - U ·Bo lt
10 - Gr ea~e Retain er
11- Gr casc Se al
1 2- Br acket
1 3- Bu s hin g
14- Spring
15- Pi ate a nd Sh aft
16 -
Lo c kwasher
17- Nut
IS- Bo lt
19 - Benring
20 - B r ac ket
21
-S h oc k Ab so rb er
22 - Silcnt Block B ea rin g
23-Bo lt
24- Nut
25 - Side Pl at e
When installing a n ew U -s ha c kl e or a shackle bush -
ing , fo ll ow the procedure outlined below:
Ins ta ll t he shackle grease seal and retainer over the
threaded end of the shackl e up to the shoulder. In-
sert the shackl e through the frame bracket and eye
of the spring . Holding the U-s hackle tightly against
the frame , start the upper bushing on the shackle,
taking care that when it enters the thread in the
frame it does not cross-thread. Screw the bushing
on the shackle about half way . Start the l ower
bushing, holding the shackle tightly against the
spring eye, and thread the bushing in approximate-
ly half way. Then, alternating from top bushing to
lower bushing, turn them in until the head of the
bushing is snug against the frame bracket and the
bush i ng in the spring eye is !12" [0,794 mm.] away
from the spring as measured from the inside of
hexagon head to the spring.
Lubricate the bushing and then try the flex of the
shackle, which mu st be free. If a shackle is tight it
may cause spring breakage and it will be necessa ry
to rethread the bushings on the shackle.
S-7. Shock Ab s orber s
The hydraulic, direct-action shock absorbers used
on these vehicles are designed to absorb both up -
ward and downward motion. The upper ends of
the shock absorbers are secured to the vehicle frame
F I G. 308-FRONT SPRING SHACKLE