TRANSMISSION APPLICATIONS: SUBJECT: 1989 THM 440-/T4 HYDRA-MATIC NEW GOVERNOR SCREEN ADDED TO CASE 4T60 (ME9) 1989 THM F-7 (ME9)
TRANSMISSION MODELS: VEHICLE APPLICATIONS: ALL THM 440-T4/HYDRA-MATIC 1989 A, C, E, H, W AND Z CARS 4T60 MODELS, THM F-7 - AXH 1989 V CAR
A new Governor Screen (3) was added to the Governor Shaft Sleeve in the Case. The Governor Screen will minimize the potential of sediment entering the Governor Assembly and preventing the Governor Balls from seating properly.
SERVICE ACTION: (Figure 2) -------------------------- A machining change in the Case to provide clearance for the Screen will not permit installation of the Screen in past model Cases.
DATE OF PRODUCTION CHANGE: (Figure 1) ------------------------------------- The new Governor Screen will be used on some models for production starting November 30, 1988 (Julian Date 335) and will be used on all models December 5, 1988 (Julian Date 340).
This is the same Governor Screen as used in the THM 125C/HYDRA- MATIC 3T40.
Part No. Description Model Year - Model Usage -------- ----------- ------------------------ 8660770 Sleeve and Screen 1989-1/2 All Assembly, Governor Shaft
8631328 Sleeve, Governor Shaft 1984-89-1/2 All (no screen)
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