LB7 Rear Main Seal how to? - Chevy and GMC Duramax Diesel Forum

01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

 
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post #1 of 3 (permalink) Old 11-01-2010, 02:36 PM Thread Starter
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LB7 Rear Main Seal how to?

Was curious as to what all is involved in changing the rear main seal in our trucks. The reason I ask is mine is leaking(not terribly just a drip or two) and soon I will have my trans out. So who's done one and how hard is it?

01 Silverado 2500HD Ext Cab Short Box 4X4
Just a big black work truck...nothing fast about it R.I.P.

07 Hummer H3 Luxury/Off Road

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post #2 of 3 (permalink) Old 11-02-2010, 08:21 AM Thread Starter
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Anyone? There has to be someone who has done one

01 Silverado 2500HD Ext Cab Short Box 4X4
Just a big black work truck...nothing fast about it R.I.P.

07 Hummer H3 Luxury/Off Road

08 G8 GT Liquid Red Sport/Premium
Just the family cruiser
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post #3 of 3 (permalink) Old 11-15-2010, 10:53 AM
 
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Just had mine replaced about a year ago. I've worked on cars/trucks for a long time(rebuilt engines etc..) I decided to have a reputable diesel shop do mine for me after seeing what was involved and how much I would have to put out in additional tools it was a no brainer to have someone else do it who could warranty it. The tool from Kent-Moore alone to install the new seal is +/- $450. I decided for $1000 it was worth it. The shop that did mine gave me all of the old parts back including the flywheel bolts that couldnt be re-used. Those things are MASSIVE and after seeing them I know that would have been another tool I had to buy to get those beasts out.
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