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![Final Markdown Quickchange Gearset 1 3/8",10 Spline,#20a, 21t/27t Diy Kit [qGSHFZLB]](https://cdn.shopify.com/s/files/1/0829/0477/6985/files/WIN_8501Chart_2eaa7d36-85ab-471c-8469-d56c2cb5daf7.jpg?v=1751973711)
![Final Markdown Quickchange Gearset 1 3/8",10 Spline,#20a, 21t/27t Diy Kit [qGSHFZLB]](https://cdn.shopify.com/s/files/1/0829/0477/6985/files/WIN_8501HighLow_bcbec18a-1217-4b45-8cbc-ec9e016e3ebc.jpg?v=1751973711)
![Final Markdown Quickchange Gearset 1 3/8",10 Spline,#20a, 21t/27t Diy Kit [qGSHFZLB]](https://cdn.shopify.com/s/files/1/0829/0477/6985/files/WIN_8501a_160887cf-e13c-477e-a24c-274148e1aee8.jpg?v=1751973711)
Final Markdown Quickchange Gearset 1 3/8",10 Spline,#20a, 21t/27t Diy Kit [qGSHFZLB]
$33.99
$108.99
-69%
TOOTH COUNT: 21/27PREMIUM QUALITY WINTERS QUICKCHANGE GEARS10 SPLINEPRECISION MATCHED SETSTO FIGURE EXACT GEAR RATIO, 1ST GET THE SPUR RATIO*SPUR RATIO=TEETH ON TOP GEAR DIVIDED BY TEETH ON BOTTOM GEARTHEN FIGURE THE GEAR RATIO*GEAR RATIO=SPUR RATIO
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Final Markdown Quickchange Gearset 1 3/8",10 Spline,#20a, 21t/27t Diy Kit [qGSHFZLB]
*SPUR RATIO=TEETH ON TOP GEAR DIVIDED BY TEETH ON BOTTOM GEAR
*GEAR RATIO=SPUR RATIO X R&P RATIO
What Our Customers Say
Absolutely no complaints!
This product is a superb performer in every test.
- Guadalupe W..
Absolutely no complaints!
This product is a brilliant tool. It's efficient and powerful.
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Absolutely no complaints!
A truly innovative product that solves a real problem.
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