Nitro Gear Performance Duramax Gear Set 5.13 Ring and Pinion Set 2001-2010

Nitro Gear, 2001-2010 GM 2500/3500HD w/Duramax, 5.13 Ratio, Front & Rear Gear Package Kit (GPDURAMAX-5.13)

Changing the gear ratio of your truck can be just as beneficial as bolting on power! DHD recommends changing your gear ratios anytime you drastically increase your tire size. Most customers change gear ratios after installing 35" or larger tires. This all inclusive packaged from Nitro makes upgrading your lifted Duramax or Duramax pulling truck easy.

Fitment:
Duramax or 8.1L with Salisbury Type Front Axle
Front Differential:    GM 9.25" Rev. IFS
Rear Differential:    (AAM) GM 11.5"
Gear Ratio:    5.13
Qualifier:    with Duramax or 8.1L
Manufacturer:    Nitro Gear & Axle
Warranty:    2 Years

Complete Gear Package Kit Includes:
Nitro front ring & pinion
Nitro front Master Install Kit
Nitro rear ring & pinion
Nitro rear Master Install Kit

*Notes:
-Other required parts included in Nitro Gear Packages may include solid spacers, yokes or other components as noted.
-Nitro Master kits include name brand OE quality bearings.

Nitro Rings & Pinions:
8620 Steel Gear Forgings
Precision Machining
CNC Triple-lapping
Heat Treatment
Rockwell Hardness Tested

Nitro Master Install Kits:
Koyo or OEM Carrier Bearings
Koyo or OEM Pinion Bearings
Pinion Nut if applicable
Pinion Seal
Crush Sleeve or Preload Shims or Solid Spacer
Carrier Shims if applicable
Gasket or Silicone
Loctite
Gear-marking Compound and Applicator Brush