Excessive Vibration Felt in Vehicle While Driving - Fluid Leaks From Rear of Transmission on Ford E-350

This concern relates to vehicles equipped with the E4OD and 4R100 automatic transmissions. Fluid leaks from the rear of the transmission and excessive vibration felt in the vehicle while driving can be caused by a lack of lubrication to the rear of the transmission and rear seal failure. The extension housing (rear portion of transmission) can lose lubrication if the fluid supply hole becomes clogged. This leads to rear seal failure from lack of lubrication, and can cause bearing failure in the extension housing. The extension housing and gasket should be replaced and verify the fluid supply hole is clear of debris.

RepairPal Verified
Average mileage: 75,770 (44,000–112,620)
Drive Train affected: 4 Speed Transmission
15 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
23 people reported this problem
5 people shared problem details
1995 Ford E-35073,000
only vibrates till you get to about 50mph
2 people like thisFlag inappropiate
1996 Ford E-35044,000
TRANS VIBRATED BETWEEN 45 TO 60 MPH 7 CLANGED BADDLY IN REVERSE, REAR SECTION HAD "NO OIL IN IT", FILLED IT UP AND HAVE NO MORE ISSUES!!!!!!
1 person likes thisFlag inappropiate
1995 Ford E-35069,000
I change the rear end buching and seal 4 times no solution yet!
2001 Ford E-35076,000
driving down the highway, got terrible vibes. Drove it to the shop, thought it was a bud ujoint, turns out it was the described problem. No Fluid got to the bearing, the bearing over heated and fried, needs new tail housing and bearing.
2004 Ford E-35080,000
had a slow leak, and vibration when changing gear. When all the oil leaked, it would not move on drive.. had to move the vehicle on gear 3 to have it checked out.
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