ATS Diesel Stage 1 Transmission Package 03-04 LB7 Duramax


2003 – Early 04 GM Truck 4WD (w/ LB7 Engine) Stage 1 Auto Trans Package.
– ATS Built Allison LCT1000 Auto Trans
– ATS 5 Star Viskus Clutch Drive Torque Converter
– ATS Extra Deep Transmission Pan

SKU: 3099154272 Category:



Full Pull Diesel Performance is a trusted dealer and installer for all ATS Diesel products. ATS Diesel backs their transmissions with a 5 year/500,000 mile warranty, and you won’t find that anywhere else.┬áBy increasing the capability of the torque converter, clutch surface area and line pressure, the transmission can hold 200% more torque than stock. The result is a setup strong enough to handle aftermarket fueling, turbo(s), tuning and the intensity of drag racing, sled-pulling or dyno competitions. Yet, it is still smooth enough to tow and daily drive.


The ATS Stage 1 Allison features:

  • ATS Five Star billet torque converter, featuring five lock-up clutches, a billet 12 bolt cover, mixed flow stator and custom stall speeds


  • ATS C1-C5 custom CNC?d steels and proprietary clutch pack material


  • Modified transmission pump to increase line pressure


  • Modified A&B Trim Valves


  • New gaskets and seals


  • ATS Deep Transmission Pan featuring a 5 quart capacity over stock, finned design for heat dissipation and a magnetic drain plug




Questions? (706) 678-6708

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