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Username Post: Transfer Case Front Seal Leak        (Topic#346044)
Forum Newbie
Posts: 1

Age: 52
Loc: Lakeville, MN
Reg: 07-16-17
07-16-17 05:41 AM - Post#2700224    

I just had a new t-case put on my new to me 2005 1500hd 4x4 crew cab. After its maiden voyage of 150 miles, parked in the garage, the next morning I have a puddle under it, which appears to have come from the front shaft seal. What would cause it to leak?

When I look at the seal itself, it appears to have pushed out some. The lip that I would think should be flush to the case, has about an 1/8" of an inch gap between it, and the case. The rear seal appears to be tight on the case.

Any insight, besides taking it back to the guy who replaced the t-case for me, and saying "fix it?" This is what I plan to do, but would like to know as much as I can when I go talk to him.

Also, I've read on here that dexron III AT fluid should be used, is that correct? I want to pour some in before driving it back, so I don't grenade the t-case by running it while dry.

Thanks in advance.

Edited by XCR440 on 07-16-17 05:43 AM. Reason for edit: No reason given.

Posts: 135

Age: 20
Loc: Dayton Texas
Reg: 02-23-15
07-21-17 04:55 AM - Post#2700801    
    In response to XCR440

You use auto-trek in yours. O'Reilly universal transfer case fluid works to. If the work is warrantied, take it in.

2000 chevy silverado "mutt" RIP
1993 chevy k1500, swapping
everything from "mutt"

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