Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8537

When you're chasing lap times at the track, your rear gear ratio is the difference between optimal acceleration and leaving performance on the table. The Winters 8500 Series Quick Change Gear Set gives you the flexibility to dial in your setup for any circuit—swap between a 4.12 for highway-friendly cruising or shift to a 4.86 for aggressive track performance without breaking down your entire differential. Steel construction means these gears handle sustained racing loads without compromise, while the quick-change design keeps you racing instead of wrenching.

• Series: 8500 Series
• Set Number: Set 37
• Spline Count: 10 spline
• Ratio Options: 4.12 or 4.86
• 4.12 Breakdown: 6.08 / 2.79
• 4.86 Breakdown: 7.17 / 3.29
• Material: High-quality steel
• Installation: Bolt-on compatible
• Fitment: 10 spline applications
• Sold As: Individual set