Calais FWD L4-151 2.5L (1985)
IMPORTANT:
If ordering a new 1-2 or reverse band, the correct band apply pin must be used with the band. The correct band apply pin is not
included with the new band service package(s) (that includes an instruction sheet about the non-selective band apply pin band). The
proper band apply pin must be ordered separately.
NOTICE:
If replacing a 1-2 band with the new 1-2 band listed in this bulletin, the 1-2 band stop (on models so equipped) must be removed
prior to installing the band. The 1-2 band stop, if not removed, would cause the new 1-2 band to remain partly applied, distressing
the 1-2 band. Reference Dealer Technical Bulletin 90-T-80.
IMPORTANT:
If replacing reverse band assembly, the new band also has the new friction material that will help decrease reverse engagement
concerns. Reference Dealer Technical Bulletin 90- T-109.
DATE OF PRODUCTION CHANGE:
Beginning July 2, 1990 (Julian Date 183), all 1991 HYDRA-MATIC 4T60 transaxles were built with the new 1- 2 and reverse band assemblies.
SERVICE PARTS INFORMATION:
The new bands will replace the previous bands.
Part
Model
Model
Number
Description
Year
Usage
8675986
Package - Reverse Band Asm.
1984-91
All
-Reverse Band Assembly
-Instruction Sheet
8656543
Pin - Reverse Band Apply
1984-91
All
8675987
Package - 1-2 Band Asm.
1984-91
All
1-2 Band Assembly
-Instruction Sheet
8656540
Pin - 1-2 Band Apply
1984-91
All
Parts are currently available from GMSPO.
SERVICE MANUAL REFERENCE:
Refer to the appropriate Service Manual for proper disassembly and assembly procedures. The 1991 Service Manual shows the procedure to measure the
1-2 and reverse band apply pins and should be disregarded.