Eatinstang4life

iTrader: (10)

Just wondering if I should replace the rear main engine seal while I have access to it. My car has 70k miles on it. The seal looked great and dry when I first pulled the flywheel off but now after two days of sitting I notices a tiny bit of oil around the bottom of the seal concerning me. Is it hard to replace these?

bearcatt

iTrader: (41)

Yes if you have it all apart you might as well change the rear main seal.

It's not that hard.

Eatinstang4life

iTrader: (10)

Is it easier to take the cover off and replace the seal?

bearcatt

iTrader: (41)

Not sure what you are asking ?

I just drained the motor oil, pryed the oil seal and drove another one on there.


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Eatinstang4life

iTrader: (10)

there is a cover just like the front timing cover on the rear of the engine that the seal is housed in.

bearcatt

iTrader: (41)

Oh I see what you mean now.

I didn't even think about removing the housing.
I just used a seal puller and screwdrivers to remove the seal.

Then I used a seal driver and a very large socket to install the seal.

I thought replacing the rear main seal was easier than replacing the seal
on the front timing cover. I found it to be a pain to get that one off.
I did the front while installing my cam.

GM has redesigned the rear seal, it's different from the original unless
you get a Felpro it will be the same. I ended up with the GM seal...
so far so good after almost a year.






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91RS383

It was very easy to change by removing the cover. I did not need any special tools.