A/T - New Reverse Band Apply Pin Gage

9222buick06

Bulletin
89-7440-11

Date
Aug. '89

Ref. No.
89-209-7440

Corp. Ref. No.
977132


SUBJECT:
NEW REVERSE BAND APPLY PIN GAGE

MODELS AFFECTED:
1989 CARS WITH THM 440-T4/4T60 TRANSMISSIONS

ASSEMBLY COMPONENT CHANGE

A new reverse band apply pin gage is required for all 1989 and 1990 THM 440-T4/HYDRA-MATIC 4T60 models. The 1989 and 1990 transaxle calibrations require a longer reverse band apply pin selection set. This new gage pin will make the band apply pin selection about 0.080" (2 mm) longer or two sizes longer than if gage pin J 33382-2 is used.








SERVICE PROCEDURE (Figures 1 and 2)

When servicing a 1989 or 1990 model year transaxle, use the proper year band apply pin selection chart and gage pin J 33382-10. Gage pin J 33382-10 has a hex head for easy identification.

IMPORTANT:
Do not use the new gage pin J 33382-10 for selecting the proper 1-2 band apply pin. Calibrations will be affected. Reference Figures 1 and 2 for proper 1-2 band apply pin gage.

SERVICE MANUAL REFERENCE

This product change information is shown in the THM 440-T4/ HYDRA-MATIC 4T60 Automatic Transaxle Unit Repair section of your 1990 Service Manual.

SERVICE TOOL INFORMATION

The reverse band apply pin gage J 33382-10 will be available later in the 1989 calendar year from Kent-Moore. Order the tool from Kent-Moore's order department at (313) 574-2332 or 1-800-345-2233.

SERVICE NOTES

This change does not affect 1988 or prior model years.