01-10 GM 2500HD/3500HD 4WD Nitro Gear Package Kit (4.11 Ratio)

2000-2010 GM 2500/3500HD Duramax or 8.1L Nitro Front & Rear Gear Package Kit

Recommended: 6 quarts of Nitro Synthetic Plus Gear Lube

Gear Package Kit Includes:

• Nitro front ring & pinion
• Nitro front Master Install Kit
• Nitro rear ring & pinion
• Nitro rear Master Install Kit

*Note Other required parts included in Nitro Gear Packages may include solid spacers, yokes or other components as noted.

Suffering from poor performance and reduced fuel economy resulting from oversized tires?

A Nitro gear change will help get that performance and economy back!

If you've fitted larger tires to your vehicle then you are likely experiencing a loss in performance, fuel economy, and more constant transmission gear "hunting" - This is because the larger tires reduce your engine's RPMs below the optimal power band. Re-gearing the differentials in your vehicle is the only way to get your vehicle back into its optimal operating RPM range, thus improving performance and reducing strain on your vehicle's drivetrain. This is especially important for today's vehicles as they feature tall factory gearing and overdrive transmissions which are less tolerant to increase in tire size or the weight of added accessories.

It's a common misconception that gear changes are reserved only to hardcore off-roaders or trucks with huge tires. However, re-gearing is one of the single most beneficial modifications you can make to keep the performance, economy, and durability of your daily-driven 4x4. This is a mod for anyone with larger tires, increased weight, or for increased performance on stock vehicles for towing or increased acceleration.

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 Fits. One part number. One price. One click away."Nitro Gear Install".

Features: 

Nitro Rings & Pinions:

8620 Steel Gear Forgings

Precision Machining

CNC Triple-lapping

Heat Treatment

Rockwell Hardness Tested

Nitro Master Install Kits:

Koyo

Specs:

Front Differential: GM 9.25" Rev. IFS

Rear Differential: (AAM) GM 11.5"

Gear Ratio: 3.42, 3.73, 4.11, 4.30, 4.56, 4.88 or 5.13

Qualifier: with Duramax or 8.1L

Manufacturer: Nitro Gear & Axle

FITMENT

2000-2010 GMC Sierra 2500HD & 3500HD 4x4 w/ Duramax Diesel, or 8.1L gas

2000-2010 Chevrolet Silverado 2500HD & 3500HD 4x4 w/ Duramax Diesel, or 8.1L gas

Nitro: GPDURAMAX-4.11