10-Spline Ultra Duty Quick Change Gears

Over sixty years of gear manufacturing know-how went into designing Quarter Master® Ultra-Duty™ Quick Change Gears. Starting with the highest quality E9310 aircraft steel, Quartermaster precision hobs them to AGMA Class B Tolerances to produce a true involute tooth form for a high contact ratio. After a proprietary heat treatment process, all gears are hand roll tested and inspected. These quick change gears are specifically designed to run smoother and last longer than any other on the market. They are available with 64 gear ratios in 10-Spline for Sprint and Late Models, and 42 gear ratios in 6-Spline for Midgets.

• Engineered from high-quality E9310 aircraft steel & heat treated for long lasting durability

• Precision hobbed to AGMA Class B Tolerances to produce true involute tooth form for high contact ratio

• Finished with proprietary heat treat process, then hand roll tested & inspected

• Available in 64 gear ratios in 10-Spline for Sprint & Late Models; 42 gear ratios in 6-Spline for Midgets

• In stock Set #20Q 1.286 Spur Ratio (21/27 Teeth)• 4.11 (HI 5.29, LO 3.20) 4.86 (HI 6.24, LO 3.78) - SOLD
• In stock Set #50Q 1.750 Spur Ratio (16/28 Teeth)• 4.11 (HI 7.19, LO 2.35) 4.86 (HI 8.50, LO 2.78)
• In stock Set #52Q 1.750 Spur Ratio (16/28 Teeth)• 4.11 (HI 7.19, LO 2.35) 4.86 (HI 8.50, LO 2.78)

• In stock Set #54Q 1.800 Spur Ratio (15/27 Teeth)• 4.11 (HI 7.40, LO 2.28) 4.86 (HI 8.74, LO 2.70)

Choose your sets - these sets are in stock and are on a Close-Out Sale - other sets can be ordered - usually only takes a couple days, other 10 spline sets are $225.57