James E Waldron Jr

When I got my 2005 f150 in 2010

I was told that the left rear axle gasket was leaking, The dealer said he would fix before I got it. 3 years go by and I was told the same thing so I assumed the dealer don't repair it (lesson learned) so I took it to a shop and they repaired it $$, now three years later I am being told the same thing. what is the Average life of a rear left axle gasket.

D_D_in_KY

Wouldn't think a rear axle gasket would be time sensitive but more along the line of miles driven and the road conditions. What are the miles driven within those 3 year periods. Second, it is only (always) the Left and not the right so I am thinking there could be something "slightly out of round" with the right axle. Perhaps a pothole hit by the original owner.....I guessing...

The more history of the truck you input the better the forum can help.

redfishtd

I did repair my pinion seal 2 years ago.. I think you may have got a poor repair job . Perhaps the surfaces were not cleaned or polished correctly,maybe salt damage . I really haven't had to deal with mine .Perhaps some wise rear end guy will chime in . Most posts are about servicing pinion seal and sealing main cover to change rear oil . Definitely something wrong .

nrivera04

Eric Kleven

Hurt bearing or hurt axle, most likely.
Bad installation also possible, and cheaper to remedy.