• Chassis

  Transmission output shaft leak

  Posted by AL on November 12, 2014 at 4:20 pm

  I’am seeing some oil on the garage floor. Turns out leak is from a defective transmission output shaft seal.

  

  Leaking trans fluid has washed the lower surface of transmission housing.

  

  New seal installed in transmission, cleanup area. Note new u-joint saddle clamps and bolts. These are always replaced with any drive shaft service as eliminating u-joint coupling failure, bolts torqued to spec.

  Peter replied 11 years, 11 months ago 3 Members · 3 Replies
• 3 Replies

• 

  glen

  Member

  November 13, 2014 at 12:19 am

  Good job Al!

• 

  AL

  Member

  November 13, 2014 at 8:15 pm

  Al,

  Did you have to drain the transmission fluid to change the seal? Or is the level below the seal?

  My output shaft is oozing a bit when driving but no dripping when parked. But changing the seal is probably in my future too

  Gerald

• 

  Peter

  Member

  November 14, 2014 at 9:30 pm

  Had my trans seal fee placed at Prevost JAX in Sept. The old seal had worn a groove in the shaft (only 54000 miles but 15 years). Prevost has a sleeve that fits over the shaft so the groove does not destroy the new seal. Also replaced the U-joint as the old one was VERY rough. Less than 1qt of trans fluid added. Invoice $740

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