A/T - Revised Rear Bushing R & R Procedure and Tool
90cadillac08Bulletin No. T-90-86
File in Group 7
Number 221
Corp. Ref. No. 077103R
Date July, 1990
SUBJECT: REAR CASE BUSHING OR CASE EXTENSION BUSHING - NEW ON-VEHICLE SERVICE PROCEDURE - THM 200, 200-C, 200-4R, AND 700 R-4 (4L60)
MODELS AFFECTED: 1981-1990 RWD DE VILLES, FLEETWOODS, AND BROUGHAMS
Figure 1 - Rear Case Extension Bushing Remover and Installer:
A new rear bushing (or rear extension bushing) removal/installation procedure is now available that can be performed while the transmission is in the vehicle. This procedure saves labor time on each of the following transmission models:
^ THM 200-4R
^ THM 200-C
^ THM 200
^ Hydra-Matic 4L60 (THM 700-R4)
Service Parts Information:
This tool is currently available from Kent-Moore:
J-38119 - Rear Case Extension Bushing Remover and Installer
Service Procedure (Figures 1, 2, 3):
IMPORTANT: J-38119 includes two expansion tubes; one silver and one black. Use the black tube for GM transmissions.
Begin each procedure by raising vehicle on a hoist.
Figure 2 - Bushing Removal Procedure:
Bushing Removal Procedure (Refer to Figure 2)
1. Disconnect propshaft from rear of transmission
2. Remove rear case seal.
3. Assemble tool as shown in Figure 2.
4. Insert collet into rear opening of transmission case.
5. Slide expansion tube into segmented collet.
6. Turn cap to lock collet into position.
7. Use a 15/16" end wrench and turn bolt clockwise to remove bushing.
8. Remove J-38119 with collet attached.
Figure 3 - Bushing Installation Procedure:
Bushing Installation Procedure (Refer to Figure 3)
1. Remove long bolt from cap of J-38119
2. Place new bushing over segmented collet.
3. Slide black extension tube into segments.
4. Turn cap to lock collet into place.
5. Install new bushing into transmission by driving J-38119 in firmly with a plastic hammer.
6. Turn cap to unlock collet.
7. Remove J-38119.
8. Remove collet.
9. Install rear case seal.
10. Connect propshaft to rear of transmission.
This procedure is not currently included in any Service Information Manual.