Firebird V8-305 5.0L (1982)
Band: All Technical Service Bulletins
A/T - New 2-4 Band, Apply/Anchor Brackets, Lube Window
Bulletin Number:
90-7-20
Reference Number:
977161
Publish Date:
12/89
Subject:
2-4 BAND,CHANGES - APPLY/ANCHOR BRACKETS AND NEW LUBE WINDOW
Models
Affected:
1982-90 FIREBIRD MODELS
Figure 1 - 2-4 Band Assembly
Figure 2 - THM 700-R4/HYDRA-MATIC 4L60 Transmission Identification Information
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.
DATE OF PRODUCTION CHANGE: (Figure 2)
Starting September 8, 1989 (Julian Date 251), all HYDRA-MATIC 4L60 transmissions were built using the new 2-4 band assembly.
