GM with 5.3L V8 1\2 Ton (2014-2018) | Nitro Gear Package | 4.56 | 4.88

  • Nitro Rings & Pinions
  • 8620 Steel Gear Forgings
  • Precision Machining
  • CNC Triple-lapping
  • Heat Treatment
  • Rockwell Hardness Tested
  • Nitro Master Install Kits: Koyo or OE Bearings
Guaranteed Safe Checkout
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  • Worldwide shipping & Pick-Up and Drop-Off in upper 48 USA states
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2014-2018 5.3L Chevrolet 1/2 Ton Nitro Front & Rear Gear Package Kit


Complete Gear Package Kit Includes:

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


*Requires MRG925A if replacing Factory 3.23 & down rear ratios
*NC-GM8.25-4 is also required for vehicles originally equipped with 3.23 & down front ratios.
-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.

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 an increase in tire size or the weight of added accessories.

It’s a common misconception that gear changes are reserved only for 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 4×4. This is a mod for anyone with larger tires, increased weight, or increased performance on stock vehicles for towing or increased acceleration.

Nitro Gear and Axle Premium Differential Ring and Pinion Gears, Axles and parts

Nitro Gear & Axle realizes 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 4×4 Fits. One part number. One price. One click away.


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
  • if applicable
  • Pinion Nut
  • Pinion Seal
  • Crush Sleeve or Preload Shims or Solid Spacer
  • Carrier Shims
  • Gasket or Silicone
  • Loctite
  • Gear-marking Compound and Applicator Brush

2014-2018 Silverado (5.3L)
2014-2018 Tahoe (5.3L)
2014-2018 Suburban (5.3L)
2014-2018 GMC Sierra (5.3L)
2014-2018 Yukon (5.3L)
2014-2018 Cadillac Escalade (5.3L)


Box Weight: 46 lbs.

  • Front Differential: 8.25″ Rev IFS
  • Rear Differential: GM 9.5 K2
  • Gear Ratio: 4.56, 4.88
  • Qualifier: with 5.3L
  • Manufacturer: Nitro Gear & Axle
  • Warranty: 2 Years


This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to:


*All Nitro Gear & Axle brand products are warrantied to be free of manufacturer defects for the specified period. Warranty requests must be made by the original purchaser and submitted by the dealer purchased from. Any parts sent for warranty consideration must be pre-approved and shipped prepaid freight to Nitro Gear & Axle facility with a copy of RGA for our inspection & determination. Nitro will not pay for labor, shipping costs, loss of revenue or perishable goods, commercial losses, costs of telephone calls, shipping, or general inconvenience. This is Nitro only warranty expressed or implied. Unauthorized warranty returns may be refused. Warranty generally covers MFG defects in material or workmanship. Abuse, overloading, improper lubrication, misuse, commercial or competition use void warranty. Normal characteristics are not warrantable, such as Gear whine. Minor cosmetic flaws, dings, and burrs from shipping or manufacturing are not considered defects, it is the installer’s responsibility to address these at the time of installation. The customer is responsible for shipping charges if the warranty is granted. The warranty is for the original purchaser/user and is not transferable. The warranty covers one replacement or credit solely at our discretion. Warranty determinations are at Nitro Gear & Axle sole discretion.

In addition to the above conditions, see special notes for these products:

Ring & Pinion – Warrantied against manufacturing defects. 2 years from the date of purchase. Must provide set-up specs.

Weight 46 lbs
Make Model Year
Cadillac Escalade 2014 - 2018
Chevrolet Silverado 1500 2014 - 2018
Chevrolet Suburban 1500 2014 - 2018
Chevrolet Tahoe 1500 2014 - 2018
GMC Sierra 1500 2014 - 2018
GMC Yukon 1500 2014 - 2018