1991-2006 Chevy & GMC 2500 & 3500 4L80E Transmissions & Transmission Parts
Your HD 1991-2013 Silverado or Sierra 2500 or 3500 can make a whole ton of power with just a few simple mods, but the stock 4L80E transmission can struggle to hold it. Make sure your Duramax or V8 Vortec equipped truck can handle serious horsepower and torque levels with a built 4L80E transmission from Tier One. Our built GM 2500 and 3500 transmissions give your tough Duramax or Vortec V8 truck excellent shifting and reliability while holding the power that comes from aggressive diesel tuning, turbo upgrades, or superchargers. Tier One's 4L80E transmissions can handle heavy towing, tough off-roading, brutal sled pull, and competitive drag racing without breaking a sweat. Also check out our GM transmission rebuild kits or our GM truck performance parts and accessories! Contact Tier One with questions or for custom builds!
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