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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 04-30-2013, 08:21 AM
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 05-03-2013, 12:46 AM
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Any programmers? Mods, etc?

Try replacing the fuel and transmission filters first
 
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