Rear main seal
Thread Starter
TECH Fanatic
iTrader: (1)
Joined: Oct 2003
Posts: 1,066
Likes: 1
From: Zurich - Switzerland
Rear main seal I'm replacing the clutch and all the realted parts, included the rear main crank seal.
My old part (the engine is a 1998 LS1) has the number 12550574
The replacement seal has the part #12602972
GM sells now the same part under the #89060436
???
The older seal (12550574) has 1 lip towards the crank and one towards the outside.
The replacement part (12602972) has two lips, both towards the outside.
This seal fits perfectly, but doesn't go as deep in the seat ad the old one.
Who knows what is what?
Thanks!
Stefano
My old part (the engine is a 1998 LS1) has the number 12550574
The replacement seal has the part #12602972
GM sells now the same part under the #89060436
???
The older seal (12550574) has 1 lip towards the crank and one towards the outside.
The replacement part (12602972) has two lips, both towards the outside.
This seal fits perfectly, but doesn't go as deep in the seat ad the old one.
Who knows what is what?
Thanks!
Stefano
Thread Starter
TECH Fanatic
iTrader: (1)
Joined: Oct 2003
Posts: 1,066
Likes: 1
From: Zurich - Switzerland
You mean #89060436?
How does it look like? Two lips to the outside or one inside and one outside?
in the GM service manual they say not to lubricate the sealing surface... do you know why? Is that important?
How does it look like? Two lips to the outside or one inside and one outside?
in the GM service manual they say not to lubricate the sealing surface... do you know why? Is that important?
Last edited by tici; Oct 15, 2007 at 12:10 AM.
Thread Starter
TECH Fanatic
iTrader: (1)
Joined: Oct 2003
Posts: 1,066
Likes: 1
From: Zurich - Switzerland
Someone told me that since the new seal is made from ?kevlar/plastic? that oiling the seal starts a wicking effect. I think it would cause dirt and grit to stick to that area. Thus causing an abrasive action.
Thread Starter
TECH Fanatic
iTrader: (1)
Joined: Oct 2003
Posts: 1,066
Likes: 1
From: Zurich - Switzerland
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
