Eaton rebuild, popping in reverse - Chevelle Tech
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post #1 of 4 (permalink) Old Jul 15th, 15, 10:12 AM Thread Starter
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Kevin
 
Join Date: Feb 2004
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Eaton rebuild, popping in reverse

I rebuilt my Eaton differential with steel clutches and I shimmed it really tight. I could still turn the unit on an axle in a vice until I put the spring pack in it, then I couldn't turn it by hand.

I installed it in the rear and it was working fine for a bit even with no additive. Then after about 500 miles it started popping in reverse and then started popping on any tight turn. By popping I mean it acted like it was locked and causing the axle to twist then "pop" the tire around. Then eventually it started popping on any slight turn to the point it was basically undriveable.

I drained the oil and put in fresh non-synthetic fluid and a bottle of the good limited slip additive from a Ford dealership (I was told the GM or Ford were the best). This cured the problem again for a while. Now after a thousand miles or so it's back to popping some in reverse or if I do a full lock right hand turn. (not much, just a little)

Should I just let it wear in or should I add more additive?

Could something else be wrong? I've never rebuilt a posi before but it all seemed very straight forward and I didn't have any problems putting it together or anything. I'm thinking it might be tight and burning the fluid up or something.

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post #2 of 4 (permalink) Old Jul 15th, 15, 11:54 AM
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Freddie
 
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Re: Eaton rebuild, popping in reverse

I've had to use more than one bottle of additive before. If it needs it then put it in.


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post #3 of 4 (permalink) Old Jul 15th, 15, 11:56 AM Thread Starter
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Kevin
 
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Re: Eaton rebuild, popping in reverse

Kinda what I was suspecting, never had to do it before as long as I used good additive and not cheap crap.

I will add some more and see if the issue goes away.

Pro Touring 1971 Chevelle SS clone
head/cam LS2, 4l60e, 3.42 12 bolt
1.61 60ft [email protected] 1/8th [email protected] 1/4
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post #4 of 4 (permalink) Old Aug 31st, 15, 1:56 PM
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Gerry
 
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Re: Eaton rebuild, popping in reverse

How did you make out? Did the second bottle of additive "cure"
your issue?

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