E 150 Van V8-351 5.8L VIN H 4-bbl HP (1985)
Mainshaft Bearing/Bushing: Technical Service Bulletins
M/T - M40D New Mainshaft Bearings
Article No. 85-4-35
TRANSMISSION - M40D/TOD - NEW MAIN BEARINGS
LIGHT TRUCK 1985 ECONOLINE, F SERIES, BRONCO
As of approximately November 19, 1984 production, top shift overdrive (TOD) and manual 4-speed overdrive transmissions (M40D) will incorporate
slip fit maindrive bearings in place of current press fit maindrive bearings. These bearings are used on both the input and output shafts.
The use of the slip fit bearings will make assembly and disassembly easier, eliminating the use of special tools for bearing removal and installation. In
the past with the press fit main bearings if removal for any reason was necessary, the bearings were discarded and replaced with new ones due to the
removal procedure. With the new slip fit bearings the only ones that will be replaced during assembly and disassembly are those that are found to be
defective.
The new bearings are manufactured by Koyo Seiko and are identified by an "SH" marking in the inner race. Also to identify this change, the model
identification suffix will be advanced on the transmission service I.D. tag (such as RTS-AB will be RTS-AB1, etc.).
PART NUMBER
PART NAME
CLASS
E5TZ-7025-C
Bearing
A
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: "INFORMATION ONLY"
