Page 819 - 2021-22 Auto Performance_Circle Track

8500 Series 10-Spline Quick-Change Gears for 10" Rears
Winters 10-spline quick-change gears for use with 10" dia. ring gear are 1-3/8" wide, and machined, broached, and hobbed from quality SAE 8620 steel by Winters technicians. Sets 50 through 58 are for limited horsepower applications only. Winters also has an attractive poster (WINPOSTER10) which displays all available gear sets and ratios, making it an ideal reference chart for the wall of any race shop.
Gear Part No. Set No.
WIN8501 1 WIN8502 2 WIN8505 5 WIN8515A 15A
4.12 Axle Ratio (8-33 Teeth)
Low High
4.12 4.12 3.97 4.27 3.96 4.29 3.93 4.32 3.91 4.34 3.84 4.43 3.79 4.48 3.75 4.53 3.69 4.60 3.65 4.66 3.61 4.71 3.57 4.75 3.53 4.81 3.51 4.84 3.49 4.87 3.46 4.91 3.43 4.94 3.40 4.99 3.36 5.06 3.32 5.11 3.30 5.15 3.27 5.20 3.24 5.24 3.22 5.26 3.20 5.30 3.19 5.32 3.17 5.36 3.13 5.42 3.09 5.49 3.05 5.57 3.02 5.62 3.00 5.67 2.97 5.69
Low Spur Ratio 1.000 0.964 0.960 0.955 0.950 0.931 0.920 .0909 0.897 0.885 0.875 0.867 0.857 0.852 0.846 0.840 0.833 0.826 0.815 0.806 0.800 0.793 0.786 0.783 0.778 0.774 0.769 0.760 0.750 0.739 0.733 0.727 0.724
No. of Teeth 21/21 27/28 24/25 21/22 19/20 27/29 23/25 20/22 26/29 23/26 21/24 26/30 24/28 23/27 22/26 21/25 25/30 19/23 22/27 25/31 20/25 23/29 22/28 18/23 21/27 24/31 20/26 19/25 18/24 17/23 22/30 16/22 21/29
High 4.86 Axle Ratio Spur (7-34 Teeth)
Ratio Low High
1.000 4.86 4.86 1.037 4.69 5.04 1.042 4.67 5.06 1.048 4.64 5.09 1.053 4.62 5.11 1.074 4.53 5.22 1.087 4.47 5.28 1.100 4.42 5.34 1.115 4.36 5.42 1.130 4.30 5.49 1.143 4.25 5.55 1.154 4.21 5.60 1.167 4.17 5.67 1.174 4.14 5.70 1.182 4.11 5.74 1.190 4.08 5.78 1.200 4.05 5.83 1.211 4.02 5.88 1.227 3.96 5.96 1.240 3.92 6.02 1.250 3.89 6.07 1.261 3.85 6.12 1.273 3.82 6.18 1.278 3.80 6.21 1.286 3.78 6.25 1.292 3.76 6.27 1.300 3.74 6.31 1.316 3.69 6.39 1.333 3.65 6.48 1.353 3.59 6.57 1.364 3.56 6.62 1.375 3.54 6.68 1.381 3.52 6.71
Part No.
Gear Set No.
4.12 Axle Ratio Low (8-33 Teeth) Spur
Low High Ratio
No. of
Teeth
High 4.86 Axle Ratio Spur (7-34 Teeth)
Ratio Low High
WIN8515 WIN8526 WIN8506 WIN8525 WIN8512 WIN8507 WIN8507A WIN8517
15 26 6 25 12 7 7A 17
WIN8514 14 2.96 5.73 WIN8514A 14A 2.94 5.77 WIN8535 35 2.92 5.82 WIN8532 32 2.90 5.86 WIN8532A 32A 2.87 5.91 WIN8524 24 2.84 5.97 WIN8536 36 2.80 6.06 WIN8537 37 2.79 6.08 WIN8523 23 2.75 6.18 WIN8521 21 2.70 6.29 WIN8521A 21A 2.69 6.32 WIN8527 27 2.67 6.37 WIN8543 43 2.64 6.44 WIN8528 28 2.61 6.51 WIN8528A 28A 2.59 6.54 WIN8529 29 2.58 6.59 WIN8539 39 2.56 6.64 WIN8530 30 2.54 6.70 WIN8540 40 2.53 6.72 WIN8541 41 2.50 6.81 WIN8531 31 2.47 6.87 WIN8533 33 2.42 7.00 WIN8531A 31A 2.40 7.06 WIN8530A 30A 2.38 7.14 WIN8550 50 2.35 7.21 WIN8551 51 2.34 7.27 WIN8552 52 2.32 7.32 WIN8554 54 2.29 7.42 WIN8555 55 2.27 7.47 WIN8556 56 2.26 7.51 WIN8557 57 2.20 7.73 WIN8558 58 2.19 7.76
0.719 23/32 1.391 3.49 6.76 0.714 20/28 1.400 3.47 6.80 0.708 17/24 1.412 3.44 6.86 0.704 19/27 1.421 3.42 6.90 0.697 23/33 1.435 3.39 6.97 0.690 20/29 1.450 3.35 7.04 0.680 17/25 1.471 3.31 7.14 0.677 21/31 1.476 3.29 7.17 0.667 22/33 1.500 3.24 7.29 0.655 19/29 1.526 3.18 7.41 0.652 15/23 1.533 3.17 7.45 0.647 22/34 1.545 3.15 7.51 0.644 16/25 1.563 3.11 7.59 0.633 19/30 1.579 3.08 7.67
6.30 17/27 1.588 3.06 7.71 0.625 15/24 1.600 3.04 7.77 0.621 18/29 1.611 3.02 7.83 0.615 26/16 1.625 2.99 7.89 0.613 19/31 1.632 2.98 7.93 0.607 17/28 1.647 2.95 8.00 0.600 21/35 1.667 2.92 8.10 0.588 20/34 1.700 2.86 8.26 0.583 21/36 1.714 2.84 8.33 0.577 15/26 1.733 2.80 8.42 0.571 35/20 1.750 2.78 8.50 0.567 30/17 1.760 2.75 8.57 0.563 32/18 1.778 2.73 8.64 0.556 15/27 1.800 2.70 8.74 0.552 29/16 1.813 2.68 8.80 0.548 31/17 1.824 2.67 8.86 0.533 30/16 1.875 2.59 9.11 0.531 32/17 1.882 2.58 9.14
WIN8517A 17A WIN8508A 8A WIN8508 8
WIN8519 WIN8509A WIN8509 WIN8511 WIN8503 WIN8513 WIN8518
19 9A 9 11 3 13 18
WIN8518A 18A WIN8504A 4A WIN8520A 20A WIN8504 4
WIN8520 20 WIN8522 22 WIN8516 16 WIN8510 10 WIN8510A 10A WIN8534A 34A WIN8534 34
4400 Series 6-Spline Quick Change Gears for 8-3/8" Rears
Designed for use with 8-3/8" rears, 4400 series 1" wide gears are manufactured from 8620 steel and feature a crown cut. Engi- neered for applications with under 500 horsepower, including crate motor classes.
Gear Set No. 1
2
3 3B 3A 4
5 5A 6 24 25 7 23 8 22 9 10 11 12 13 14 15 16 17 18
Low Spur Ratio 1.000 0.958 0.920 0.895 0.880 0.846 0.808 0.792 0.778 0.767 0.750 0.741 0.727 0.714 .704 0.696 0.682 0.667 0.655 0.652 0.636 0.625 0.615 0.600 0.591 0.571 0.560
High Spur Ratio 1.000 1.043 1.087 1.118 1.136 1.182 1.238 1.263 1.286 1.304 1.333 1.350 1.375 1.400 1.421 1.438 1.467 1.500 1.526 1.533 1.571 1.600 1.625 1.667 1.692 1.750 1.786
No. of Teeth 24/24 23/24 23/25 17/19 22/25 22/26 21/26 19/24 21/27 23/30 18/24 20/27 16/22 20/28 19/27 16/23 15/22 18/27 19/29 15/23 14/22 15/24 16/26 18/30 13/22 16/28 14/25
3.78 Axle Ratio (9-34 Teeth)
4.11 Axle Ratio (9-37 Teeth)
4.33 Axle Ratio (9-39 Teeth) Low High 4.33 4.33 4.15 4.52 3.98 4.71 3.87 4.84 3.81 4.92 3.66 5.12 3.50 5.36 3.43 5.47 3.37 5.57 3.32 5.65 3.25 5.77 3.21 5.85 3.15 5.95 3.09 6.06 3.05 6.15 3.01 6.22 2.95 6.35 2.89 6.50 2.84 6.61 2.82 6.64 2.76 6.80 2.71 6.93 2.66 7.04 2.60 7.22 2.56 7.33 2.47 7.58 2.42 7.73
Part No.
WIN4401 WIN4402 WIN4403 WIN4403B WIN4403A WIN4404 WIN4405 WIN4405A WIN4406 WIN4424 WIN4425 WIN4407 WIN4423 WIN4408 WIN4422 WIN4409 WIN4410 WIN4411 WIN4412 WIN4413 WIN4414 WIN4415 WIN4416 WIN4417 WIN4418
Low High Low High
3.78 3.78 4.11 4.11 3.62 3.94 3.94 4.29 3.48 4.11 3.78 4.47 3.38 4.22 3.68 4.59 3.33 4.30 3.62 4.67 3.20 4.47 3.48 4.86 3.05 4.68 3.32 5.09 2.99 4.77 3.25 5.19 2.94 4.86 3.20 5.28 2.90 4.93 3.15 5.36 2.84 5.04 3.08 5.48 2.80 5.10 3.04 5.55 2.75 5.20 2.99 5.65 2.70 5.29 2.94 5.75 2.66 5.37 2.89 5.84 2.63 5.43 2.86 5.91 2.58 5.54 2.80 6.03 2.52 5.67 2.74 6.17 2.48 5.77 2.69 6.27 2.47 5.80 2.68 6.30 2.41 5.94 2.62 6.46 2.36 6.05 2.57 6.58 2.33 6.14 2.53 6.68 2.27 6.30 2.47 6.85 2.23 6.40 2.43 6.96 2.16 6.62 2.35 7.19 2.12 6.75 2.30 7.34
WIN4418A 18A WIN4419 19
CIRCLE 2021-22 817 TRACK