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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> 4L60e Servo Cover Seal
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Topic Review (Newest First)
02-08-2009 08:23 PM
123pugsy The top tranny line had one of those interesting slide in with a wiggly clip thingy. It was loose and leaking down making it appear that it was coming from the servo seal.

All is good.

02-07-2009 04:16 PM
123pugsy Thanks Crosley.

I'm gonna go check it out tommorow.

02-07-2009 07:32 AM
Originally Posted by 123pugsy
So, do you think RTV should be used rather than assembly lube on initial install?

I was told the snap ring was still in place.

Never use RTV there, it is useless with the pressure on the servo cover.

I have never seen a snap ring in place when a cover blows off the 2-4 servo cover. I'd replace the cover and snap ring.

Although..... TransGo used to offer in his kits a thinner snap ring to allow the servo cover to move out slightly to increase band clearance. In my opinion That was a bad Idea from TransGo and that perhaps is the problem here?

02-07-2009 04:46 AM
123pugsy So, do you think RTV should be used rather than assembly lube on initial install?

I was told the snap ring was still in place.
02-06-2009 07:51 PM
Crosley I am guessing here; the cover snap ring blew out too?

Often the cause is the snap ring was not seated properly by the builder OR there was dirt - debris or corrosion in the snap ring groove that did not allow the snap ring to seat properly.

I have also seen the aluminum edge of the servo area break away and allow the cover to come loose.
02-06-2009 10:42 AM
4L60e Servo Cover Seal

I am wondering what would cause the servo cover seal to blow out on a freshly built 1997 4l60e tranny.
It was working fine when installed and then blew out 2 days later.


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