How To: Set Pinion Depth, Backlash, and Read Gear Pattern on GM 10 Bolt

How-To: Set Pinion Depth, Backlash, and Read Gear Pattern on a GM 10-Bolt In this video I walk through a complete ring and pinion setup on a GM 10-bolt, starting with an empty housing and finishing with a fully assembled rear end. This is a full, real-world how-to covering pinion depth, backlash, and reading gear patterns, not just theory. This process applies to many GM rear ends, and the fundamentals shown here carry over to most hypoid gear setups. I cover: • Pinion depth setup and shim selection • Installing and setting pinion bearing preload • Ring gear installation and carrier setup • Setting backlash correctly • Reading the gear contact pattern (drive & coast) • Making corrections and final assembly tips This is the exact process I use in my own builds — street, strip, and performance applications. ⸻ 🔧 TOOLS & PARTS USED IN THIS VIDEO Ring & Pinion Components • Ring & pinion gear set • Installation kit and shims 👉 Parts sourced from Summit Racing 👉 (Affiliate links coming soon) Tools Used • Specialty tools from Vevor • Hand tools and presses from Harbor Freight • Measuring tools from Northern Tool 👉 (Affiliate links coming soon) Shop Equipment • Engine stand – Jegs • Axle mount – Jegs 👉 (Affiliate links coming soon) Fluids & Consumables • Gear oil, marking compound, and shop fluids from O’Reilly Auto Parts 👉 (Affiliate links coming soon) Camera & Audio Gear • Camera gear and accessories Camera- Sony EV-10 https://amzn.to/4rJ9NuJ Wireless mic- https://amzn.to/4qpqjPo ⸻ 📌 NOTES I’m currently setting up affiliate programs with several automotive parts and tool suppliers. As those programs are approved, I’ll update this description with direct links to the exact tools and parts used in this video. ⸻ 👍 SUPPORT THE CHANNEL If this video helped you: • Hit the 👍 button • Drop a comment with questions or feedback • Subscribe for more drivetrain tech, how-to videos, and full builds More real-world shop content coming soon, right here at AllieCat Customs. ⸻ As an Amazon Associate I earn from qualifying purchases.