Jeep Cherokee 2000 Service Manual - page 1360
REVERSE IDLER DISASSEMBLY
(1) Remove idler gear snap rings (Fig. 57).
(2) Remove thrust washer, wave washer, thrust
plate and idler gear from shaft.
(3) Remove idler gear needle bearing from shaft.
ASSEMBLY
Gaskets are not used in the NV3550 transmission.
Sealers are used at all case joints. Recommended
sealers are Mopar
t
Gasket Maker for all case joints
and Mopar
t
silicone sealer, or equivalent, for the
input shaft bearing retainer. Apply these products as
indicated in the assembly procedures.
NOTE: It is very important that the transmission
shift components be in Neutral position during
assembly. This is necessary to prevent damaging
synchro and shift components when the housings
are installed.
The 3-4, 1-2 and fifth-reverse synchro hub snap
rings can be fitted selectively. New snap rings are
available in 0.05 mm (0.0019 in.) thickness incre-
ments. Use the thickest snap ring that will fit in
each snap ring groove.
SYNCHRONIZER
The easiest method of assembling each synchro is
to install the springs, struts and detent balls one at a
time as follows:
(1) Slide the sleeve part way onto the hub. Leave
enough room to install the spring in the hub and the
strut in the hub groove.
(2) Install the first spring in the hub. Then install
a strut over the spring. Be sure the spring is seated
in the spring bore in the strut.
(3) Slide the sleeve onto the hub just far enough to
hold the first strut and spring in place.
(4) Place the detent ball in the top of the strut.
Then carefully work the sleeve over the ball to hold
it in place. A small flat blade screwdriver can be used
to press the ball into place while moving the sleeve
over it.
(5) Repeat
the
procedure
for
the
remaining
springs, struts and balls. Tape, or a rubber band can
be used to temporarily secure each strut and ball as
they are installed.
(6) Verify synchro assembly. Be sure the three
springs, struts and detent balls are all in place (Fig.
58).
Fig. 57 Reverse Idler Components
1 – SNAP RING
2 – FLAT WASHER
3 – WAVE WASHER
4 – THRUST WASHER
5 – REVERSE IDLER GEAR
6 – IDLER GEAR BEARING
7 – IDLER SHAFT
8 – THRUST WASHER
9 – SNAP RING
10 – THRUST WASHER LOCK BALLS
21 - 60
NV3550 MANUAL TRANSMISSION
XJ
DISASSEMBLY AND ASSEMBLY (Continued)