Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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$475.00 kit
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Features, Description, Q&A, Specs & Installation
Optimized Gear Ratio for Power Delivery. This Nitro Gear & Axle kit upgrades your Sierra’s rear end with a 4.88 gear set, delivering quicker throttle response and enhanced towing capability. The hypoid design ensures smooth operation and even load distribution across gear teeth.
Comprehensive Installation Package. Beyond ring and pinion, the kit includes all necessary bearings, seals, and hardware. The pinion crush sleeve design allows precise preload adjustment, and the pre-set backlash ensures proper gear mesh for dependable break-in.
Installation. This product installs by disassembling the axle carrier, installing the pinion with crush sleeve and bearings, setting pinion preload, mounting the ring gear to the carrier, adjusting backlash, and verifying gear pattern—professional installation with proper tools is recommended.
Application. This Nitro Gear & Axle GM 9.50-Inch Rear Axle Ring and Pinion Gear Kit; 4.88 Gear Ratio fits 2014–2026 Sierra 1500 models equipped with the 5.3-liter engine and factory 9.50-inch rear axle.
Nitro Gear & Axle GM9.5K2-488-NG
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
What's in the Box