Jeep Cherokee

 Service Manual

Transmission and transfer case » AW-4 automatic transmission » Disassembly and assembly
Front planetary gear

DISASSEMBLY

(1) Remove ring gear from planetary gear (Fig. 268).

(2) Remove front bearing and the two races from ring gear (Fig. 268).

Fig. 267 Checking Forward Clutch Assembled Height

1 - DIRECT CLUTCH
2 - APPROXIMATELY 71.2 mm (2.80 in.)
3 - FORWARD CLUTCH

(3) Remove tabbed thrust race from planetary gear (Fig. 268).

(4) Remove snap ring attaching planetary gear to shaft and remove gear.

Fig. 268 Front Planetary Gear Components

1 - FORWARD RACE
2 - FRONT PLANETARY RING GEAR
3 - FRONT BEARING
4 - SNAP RING
5 - REAR RACE
6 - REAR BEARING
7 - FRONT PLANETARY GEAR
8 - THRUST RACE
9 - FRONT RACE

(5) Remove rear bearing and race from planetary gear.

(6) Measure inside diameter of ring gear bushing.

Maximum allowable diameter is 24.08 mm (0.9480 in.). Replace ring gear if bushing inside diameter is greater than specified.

(7) Check condition of planetary gear. Replace gear if teeth are worn, pins are loose, or carrier is cracked, distorted, or worn.

ASSEMBLY

(1) Lubricate planetary and ring gear bearings and races with petroleum jelly.

(2) Identify planetary bearings and races before installation. (Fig. 268). Bearings and races can be identified by following dimensions:

•  Outer diameter of rear bearing is 47.7 mm (1.878 in.). Inner diameter is 35.5 mm (1.398 in.).
•  Outer diameter of rear race 47.6 mm (1.874 in.). Inner diameter is 33.7 mm (1.327 in.).
•  Outer diameter of front race is 53.6 mm (2.110 in.). Inner diameter is 30.5 mm (1.201 in.).
•  Outer diameter of front bearing is 47.7 mm (1.878 in.). Inner diameter is 32.6 (1.283 in.).
•  Outer diameter of forward race is 47.0 mm (1.850 in.). Inner diameter is 26.5 mm 1.043 in.).

(3) Install rear race and bearing in gear (Fig. 269).

(4) Turn planetary over and install thrust race (Fig. 270).

(5) Install front race and bearing and forward race in ring gear (Fig. 271).

Fig. 269 Front Planetary Rear Bearing and Race Installation

1 - REAR BEARING AND RACE
2 - PLANETARY GEAR

Fig. 270 Front Planetary Thrust Race Installation

1 - TABBED THRUST RACE
2 - PLANETARY GEAR

Fig. 271 Front Planetary Front Bearing And Races Installation

1 - FRONT BEARING AND RACE
2 - FORWARD RACE

Transmission

Oil pump

Overdrive planetary gear and clutch

Overdrive support

Direct clutch

Forward clutch

Front planetary gear

Sun gear and no. 1 one-way clutch

Second brake

Planetary/brake pack/output shaft

Transmission valve body