B150 1/2 Ton Van L6-225 3.7L VIN E 1-bbl (1982)
Fluid - A/T: Technical Service Bulletins
Automatic Transmission - New Fluid Type
All 1978-1985 Equipped With Automatic Transmission & Lock-Up Torque Converter
New Automatic Transmission Fluid
Date June 17, 1985
A new automatic transmission fluid Type 7176, (PN 4318077 - quart and 4318079 - 55 gallon) has been released for all vehicles equipped with
automatic transmission and lock-up torque converter.
Aftermarket fluids can vary in terms of their friction characteristics and this in turn can affect the performance of the lock-up clutch, causing shudder
and/or excessive slippage. Use of the new fluid will help to insure that the lock-up clutch will perform satisfactorily after the fluid has been replaced.
Type 7176 fluid should be used any time it is necessary to replace the fluid in a lock-up torque converter equipped transmission.
If a lock-up shudder condition is encountered, check all linkage adjustments and drain and refill the transmission with Type 7176 fluid prior to
attempting any other repairs, especially if the fluid has been changed previously.