Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

Bro In-laws Allison Tranny

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Old Apr 30, 2013 | 08:21 AM
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COMANCHE45's Avatar
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Default Bro In-laws Allison Tranny

Shifts really hard under a heavy load. Any suggestions??
 
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Old May 3, 2013 | 12:46 AM
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2004LB7's Avatar
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Any programmers? Mods, etc?

Try replacing the fuel and transmission filters first
 
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