GMC Sierra Differential Install Kit - Rear - Revolution Gear & Axle - Ring & Pinion Master - `99-`08 is a purpose-built install kit intended for GM 10-bolt 8.6" rear ends from 1999–2008. It helps technicians and enthusiasts properly set up ring and pinion gear changes on compatible Sierra models.

This master install kit from Revolution Gear & Axle is intended to support accurate installation and setup of ring and pinion replacements for 99–08 GM 10-bolt 8.6" rear ends. The kit is designed for shops and experienced DIYers who need a focused set of parts and guidance to complete a differential gear swap. Using a kit tailored to the correct axle and gear type reduces the guesswork during assembly and helps achieve correct backlash and bearing preload when used with proper tools and installation procedures.

Features

• Fitment: Designed for 1999–2008 GM 10-bolt 8.6" rear ends (Sierra and similar GM models).
• Brand: Revolution Gear & Axle master kit formulated for ring & pinion service.
• Purpose-built: Aids in correct set-up and alignment when performing ring & pinion replacement.
• Shop-ready: Intended for professional shops and knowledgeable enthusiasts performing differential work.

If you have questions about fitment, installation steps, or whether this kit is right for your build, call us directly — we’re happy to help. We offer installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. Call us at 512-982-9393 (TX) or 562-981-6800 (CA) for technical help or to schedule service.

If you are thinking about 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