Chevrolet 1500 Differential Install Kit - Revolution Gear & Axle - 4.56 Ratio - '98-'08. This Revolution Gear & Axle gear package is specified for 1998–2008 Chevrolet 1500 trucks and provides a 4.56 final drive ratio designed for those updating or repairing their differential setup.

Built to fit GM 8.6in and GM 8.25in IFS configurations for the 1998–2008 Chevy 1500, this kit is intended for installers and enthusiasts who need a correct-ratio replacement or an upgrade when changing gearing for towing or driveability preferences. The package provides a matched gear set with the correct ratio, helping maintain proper speedometer and transfer case compatibility when installed to factory or upgraded differentials. Professional installation is recommended if you are not experienced with ring and pinion setup and backlash/spec measurements.

Features

• Factory-specified 4.56 final drive ratio for 1998–2008 Chevrolet 1500 models
• Compatible with GM 8.6in and GM 8.25in IFS configurations
• Gear package designed for differential rebuilds or ratio changes
• Ideal for owners customizing gear choice for towing, load, or driving preference

If you have questions about fitment or installation, call us directly — our knowledgeable staff can confirm compatibility and advise on installation. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call us at 512-982-9393 (TX) or 562-981-6800 (CA). If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov