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An introduction to Merchant Automotive. We specialize in all things Duramax Diesel and Allison Transmission.

Merchant Automotive Transfer Case pump rub on Truck U - SPEEDTV

Duramax With Stock Motor Mounts. Look at how much the motor moves around!

A quick overview of injector replacment with parts and information from Merchant Automotive as part of Truck U TV on SPEED channel

Duramax With MA High Performance Motor Mounts.