Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8516

When track conditions change, your gear ratios need to change with them—and downtime costs you races. The Winters 8500 Series Quick Change Gear Set eliminates the hassle of pulling your differential apart, letting you swap ratios in minutes instead of hours. Built from high-quality steel and engineered to Winters' exacting standards, this 10-spline set delivers the durability and precision that professional racers depend on when performance matters most.

Whether you're chasing acceleration off the line or maximizing top-end speed, the dual ratio options (4.12 and 4.86) give you the flexibility to dial in your setup for any racing discipline. Bolt it in, hit the track, and focus on what you do best—driving fast.

• Series: 8500
• Spline Count: 10
• Material: High-quality steel
• 4.12 Ratio: 5.49 / 3.09
• 4.86 Ratio: 6.48 / 3.65
• Fitment: 10-spline applications
• Installation: Quick-change design
• MPN: WIN8516
• Sold: Each