Quick Change Gear Set 8500 Series For Automotive Differential Ring And Pinion, 1.273 Spur Ratio, 10 Spline, Ratios 4.12, 5.24/3.24, 4.86, 6.18/3.82, Steel, Set 18A

8500 Series Quick Change Gear Set for Ring & Pinion
✔️ 1.273 spur ratio, 10-spline, four ratio options, steel, Set 18A

Intended for automotive enthusiasts and pro shops, this Quick Change Gear Set is designed to swap gear ratios in automotive differential ring and pinion assemblies, enabling rapid setup for street and racing applications.

✅ Steel construction for durability in demanding track and street use
✅ Includes multiple ratios: 4.12, 4.86, 5.24/3.24, 6.18/3.82
✅ 10-spline output fits compatible differential setups
✅ Pack: Set 18A, complete upgrade kit for differential ring and pinion
✅ Designed for automotive differential ring and pinion use in sports and performance cars

💡 What is a quick change gear set used for in automotive differentials and how does it help performance?

It’s a handy upgrade for tuning your drivetrain quickly, with minimal downtime.

- swap gear ratios without full teardown - handy for race teams testing setups on track - improves acceleration and highway cruising by matching gear ratios