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September 1, 1995 Service bulletin

Some vehicles may have a driveshaft imbalance when operated at high road speeds

Ford technical service bulletin 951918 for 1993-1994 Ford L Series and 1993-1994 Ford LN Series.

Bulletin number
951918
Component
Power train: driveline: driveshaft
Summary
Some vehicles may have a driveshaft imbalance when operated at high road speeds. This imbalance can result in a crack in the torque converter housing of the transmission and/or driveshaft twisting. The driveshaft imbalance occurs when transmission torquing forces bend the shaft when in overdrive RPM. The driveshaft bending can be corrected by replacing the exiting driveshaft with a shorter shaft.

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