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Welcome to Merchant Automotive, your Duramax and Allison specialists!
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Silverado/Sierra
LB7 2001-2004
LLY 2004.5-2005
LBZ 2006-2007
LMM 2007.5-2010
LML 2011-2016
L5P 2017-2019
Colorado/Canyon
LWN 2.8L 2016+
Express/Savana
LLY Van 2006-2007
LMM Van 2008-2010
LGH Van 2010.5-2015
LWN Van 2.8L 2016+
99-07 Gas Truck Transfer Case
261HD Transfer Case
263HD Transfer Case
NP246 Transfer Case
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Choose Your Truck
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Silverado/Sierra
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LLY 2004.5-2005
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Transmissions, LLY
Transmissions, LLY
Bearings and Bushings, LLY
Filters, Fluids and Pans, LLY
Gaskets and Seals, LLY
Hard Parts, LLY
Lines, Kits and Coolers, LLY
MAximum Transmissions, LLY
Overhaul Kits, LLY
Torque Converters, LLY
Transmission Tools, LLY
Transmission Upgrade Parts, LLY
Valve Body and Electrical, LLY
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