2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Gear Packages

FREE SHIPPING ON ALL ORDERS OVER $70

PRICE MATCH
GUARANTEE

BUILD NOW, PAY LATER FINANCING OPTIONS

30-DAY RETURN
SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS
STANDING BY

We carry an entire selection of complete gear packages for the GM Sierra/Silverado 2500HD/3500HD that come with front and rear ring-and-pinion gears, install kits, and even differentials so you truck gets everything it needs to win back the performance it lost by adding larger tires. Give your custom GM build better acceleration and torque delivery to all four tires with any of these premium total gear packages from your friends here at Alligator Performance!  GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY

Can We Help You Find Something?

Give us a call: +1-208-719-7400

Chat with us

Shop This Make By

Power Lift Shop All
THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.

Shop The Garage