Changing Allison extension housing...... - Chevy and GMC Duramax Diesel Forum
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post #1 of 2 (permalink) Old 01-31-2010, 02:48 AM Thread Starter
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Changing Allison extension housing......

I have an '02 D-max and cracked the extension housing think it was due to bad universal. Does anyone have any pointers on how to change it out i started after i read some stuff online but it seems like i might have bit off more than i can chew... but now i have to fix it. thanks nick.
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post #2 of 2 (permalink) Old 01-31-2010, 07:48 AM
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Pull the trans and set it on its bell housing with extension housing pointing up. If you try this in the truck you will probably be sorry you did.
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