Nitro Gear - GPDURAMAX-4.88 2001-2014 GM 2500/3500HD (w/Duramax), 4.88 Ratio, Nitro Gear PackageNitro Gear Package
2001-2014 GM 2500HD & 3500HD
||GM 9.25" Rev. IFS
||(AAM) GM 11.5"
||with Duramax or 8.1L
||Nitro Gear & Axle
Suffering from poor performance and reduced fuel economy resulting from oversized tires?
A Nitro gear change will help get that performance and economy back!
It is a common misconception that lower gears are only for hardcore
off-roading, in actuality the average daily driven vehicle can see huge
improvements in both performance and economy by properly matching their
vehicle's gear ratio to their tire size all while reducing strain on the
We at Nitro Gear & Axle realize the difficulty for the average
consumer or install shop to compile the list of parts and prices
required when doing a gear change. To make it easier for everyone the
experts at Nitro are introducing an industry first "Gear Packages" for
many popular 4x4 applications. One part number. One price. One click