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Does anyone know what this spring is from?

joe68

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Yesterday I swapped out the 741 open 8 3/4 for a brand new center section with 3.55 gears and an Eaton Trutrac from Quick Performance. Everything went smooth and I was breaking it in according to their instructions by driving for 15 minutes and then letting it sit for 30-45 mins. After the 3rd cycle, I saw some gear oil leaking from the passenger side rear wheel. I parked it for the night figuring that I nicked the seal when I removed the axle. When I took it apart this morning, I found a small spring in the axle tube. I've never seen a spring like this in any part of an 8 3/4. It could have been in there for years, but I don't know what it is or how it would have gotten in there. Does anyone know what it's from?

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That's likley from the inner seal. Seals have the spring to keep the rubber on the sealing surface. Likely was damaged when the axle was installed. I pack the back the back sides with grease to keep the spring from popping out.
 
And that's why it's leakin'.
And I forgot to say, it is supposed to be in a circle form-----both ends attached-----together----ya know round like------Sorry---lol.

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Last edited:
Aha! Thanks everyone. I was really scratching my head on that one. Glad it was simple.
 
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