Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Starting September 8, 1989 (Juhan Date 251), all HYDRA-MATIC 4L60 transmissions were built using the new 2-4 band assembly.
SERVICE PARTS INFORMATION:
The new band is interchangeable with the previous band and should be used for service whenever possible. As soon as the previous bands are used up,
the new bands will become available.
Part
Pravious Part
New Part
Name
Number
Number
Band Assembly - 2/4
8654144
8673175
Parts are currently available from GMSPO.
SERVICE MANUAL REFERENCE
Refer to the HYDRA-MATIC 4L60 Unit Repair section of the appropriate Service Manual for removal and installation of the 2-4 band.
