Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Band: Customer Interest
A/T - New Lube Window and Band Apply/Anchor Brackets
GMC NUMBER:
90-7A-31
GROUP:
7A Automatic Transmission
DATE:
January, 1990
CORPORATE
NUMBER:
977161
SUBJECT:
2-4 BAND CHANGES - APPLY/ANCHOR BRACKETS AND NEW LUBE WINDOW
MODELS:
1982-90 C/K, S/T, R/V TRUCKS G, M/L VANS W/4L60
Figure 1 - 2-4 Band Assembly
BULLETIN COVERS: (Figure 1)
A new HYDRA-MATIC 4L60 transmission 2-4 band with changes to the apply and anchor brackets, locating tabs, and the addition of a "lube window."
The lube window was added to direct lubricating transmission fluid to the band friction material while the band is not applied. Structural changes to the
apply and anchor brackets increase their durability and the locating tabs were added to aid in assembly.
Figure 2 - Transmission Identification Information
DATE OF PRODUCTION CHANGE: (Figure 2)
