Grand Cherokee 2WD V8-318 5.2L VIN Y MFI (1994)
problems only, remove the overdrive unit only.
4.
Mark propeller shaft universal joint and axle pinion yoke for alignment reference at installation.
5.
Disconnect and remove propeller shaft.
6.
Support transmission with transmission jack.
7.
Remove rear crossmember.
8.
Remove vehicle speed sensor and speedometer adapter.
9.
Remove bolts attaching overdrive unit to transmission.
CAUTION:
SUPPORT THE OVERDRIVE UNIT WITH A JACK BEFORE MOVING IT REARWARD. THIS IS NECESSARY TO PREVENT DAMAGING
THE INTERMEDIATE SHAFT. DO NOT ALLOW THE SHAFT TO SUPPORT THE ENTIRE WEIGHT OF THE OVERDRIVE UNIT.
10.
Carefully work the overdrive unit off intermediate shaft. Do not tilt compounder during removal. Keep it as level as possible. Insert alignment tool
6227-2 in splines of planetary gear and overrunning clutch of O.D. unit to prevent splines from rotating out of alignment.
CAUTION:
IF MISALIGNMENT OCCURS, OVERDRIVE UNIT WILL HAVE TO BE DISASSEMBLED IN ORDER TO REALIGN SPLINES.
11.
Remove and retain overdrive piston thrust bearing. Bearing may remain on piston or in clutch hub during removal.
12.
Place overdrive unit over drain pan. Tilt unit to drain residual fluid from case. Examine fluid for excessive clutch material or metal fragments. If
fluid contains these items, overhaul will be necessary.
13.
Remove overdrive piston thrust plate spacer. Retain thrust spacer. It is a select fit part and can be reused.
14.
Remove intermediate shaft spacer and retain. It is a select fit and can be reused.
15.
Remove overdrive piston from retainer. Discard this piston.
16.
Install new overdrive piston, P/N 52118599.
17.
Place overdrive unit in vertical position and mount unit in vise or in workbench with appropriate size mounting hole cut into it. Be sure unit is
facing upward for access to direct clutch hub.
18.
Determine correct thickness of intermediate shaft spacer as follows:
A)
Insert special tool 6312 through sun gear, planetary gear and into pilot bushing in output shaft. Be sure tool bottoms against planetary
shoulder.
