A/T - Revised Rear Case Bushing Procedure & Tool
90pontiac03Bulletin Number: 90-7-27
Reference Number: 077103R
Publish Date: 2/90
Subject: NEW ON-VEHICLE SERVICE PROCEDURE REMOVE REAR CASE BUSHING OR REAR EXTENSION BUSHING
Models
Affected: ALL 1976-90 MODELS W/4L60, 2004R, 200C, 200
BULLETIN COVERS:
A new rear bushing (or rear extension bushing) removal/installation procedure 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
Labor savings are different on each model but can be significant.
SERVICE PARTS INFORMATION:
This tool is currently available from Kent-Moore:
J 38119 - Rear Case Extension Bushing Remover and Installer
Figure 1:
Figure 2 - Bushing Removal Procedure:
Figure 3 - Bushing Installation Procedure:
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.
Bushing Removal Procedure: (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.
Bushing Installation Procedure: (Figure 3)
1. Remove long bolt from cap of J 38119.
2. Place new bushing over segmented collet.
3. Slide black expansion 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.
SERVICE MANUAL REFERENCE:
This procedure is not currently included in any Service Manual.