TST_brah

I'm in the midst of replacing my slave and installing a LS9 clutch kit, so changing out the rear main at the same time only makes sense. The old seal came out with a bit of force, cleaned the bore and crank, schmood a bit of rtv on the seal, and it slid in place with minimal effort.


Should it have been that easy? Coworker and big LS guy said to monitor for a few days and if it doesn't drip, it's fine. I dumped in an extra quart and it's been sitting for about 4 days without dripping. I though I had read elsewhere that the seal had to be tapped in to place. I literally seated it with my fingers. So before I get much farther, should I just source an OEM seal, or are people having good luck with the Fel-Pro unit? I also noticed the Fel-Pro doesn't sit flush with the rear cover like the OE part did.


Thoughts, experience, and input appreciated.

demang

iTrader: (3)

I got the rear main seal that is included with the cover. I never had just the seal done because i heard it's more difficult to get it just right. Not worth it to me for the small savings. Local dealer had it in stock. I think i got it for $20.

Mercier

iTrader: (15)

I have used the Fel-Pro seal on a couple of builds in the last year and have three observations. I am 99% you must put the seal on dry and in the correct orientation. It should have tiny writing "this side out" on it. It took me a bit of tapping both times; did not slide right in. The silicone can actually act as a sort of lube before it cures, but I still think there would be some effort involved. I'd pull it out, clean it up, install a fresh DRY seal. Rear main seal can cause murderous thoughts(against the vehicle) when it leaks after you get everything back together. Auticide? Autocide?

TST_brah

Thanks. That's pretty much where I didn't want to end up. I for sure installed in the correct orientation, and was completely shocked when it just dropped in. Even with the rtv I wouldn't think it would lube it that much. Luckily I didn't get too much father, just put the FW and PP on before I had to call it quits last weekend.


BRB calling local dealer.

TST_brah

So the local Caddy dealer (Parkway) is apparently run by a bunch of scammers. Seal not in stock, $42, special order. Get fkd boy-o. Called over to the Chevy place (Autonation), both seals and complete covers on the shelf, $24 and $72, respectively. Guess who's getting my business.