Page 791 - 2019-2020 Racecar Engineering Circle Track Parts and Accessories Catalog

8500 Series 10-Spline Quick-Change Gears For 10" Rears
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any race shop.
4.12 Axle Ratio High 4.86 Axle Ratio 4.12 Axle Ratio Low High 4.86 Axle Ratio
Gear (8-33 Teeth) Low Spur No. Of Spur (7-34 Teeth) Gear (8-33 Teeth) Spur No. Of Spur (7-34 Teeth)
Part No. Set No. Low High Ratio Teeth Ratio Low High Part No. Set No. Low High Ratio Teeth Ratio Low High
WIN8501 1 4.12 4.12 1.000 21/21 1.000 4.86 4.86 WIN8514 14 2.96 5.73 0.719 23/32 1.391 3.49 6.76
WIN8502 2 3.97 4.27 0.964 27/28 1.037 4.69 5.04 WIN8514A 14A 2.94 5.77 0.714 20/28 1.400 3.47 6.80
WIN8505 5 3.96 4.29 0.960 24/25 1.042 4.67 5.06 WIN8535 35 2.92 5.82 0.708 17/24 1.412 3.44 6.86
WIN8515A 15A 3.93 4.32 0.955 21/22 1.048 4.64 5.09 WIN8532 32 2.90 5.86 0.704 19/27 1.421 3.42 6.90
WIN8515 15 3.91 4.34 0.950 19/20 1.053 4.62 5.11 WIN8532A 32A 2.87 5.91 0.697 23/33 1.435 3.39 6.97
WIN8526 26 3.84 4.43 0.931 27/29 1.074 4.53 5.22 WIN8524 24 2.84 5.97 0.690 20/29 1.450 3.35 7.04
WIN8506 6 3.79 4.48 0.920 23/25 1.087 4.47 5.28 WIN8536 36 2.80 6.06 0.680 17/25 1.471 3.31 7.14
WIN8525 25 3.75 4.53 .0909 20/22 1.100 4.42 5.34 WIN8537 37 2.79 6.08 0.677 21/31 1.476 3.29 7.17
WIN8512 12 3.69 4.60 0.897 26/29 1.115 4.36 5.42 WIN8523 23 2.75 6.18 0.667 22/33 1.500 3.24 7.29
WIN8507 7 3.65 4.66 0.885 23/26 1.130 4.30 5.49 WIN8521 21 2.70 6.29 0.655 19/29 1.526 3.18 7.41
WIN8507A 7A 3.61 4.71 0.875 21/24 1.143 4.25 5.55 WIN8521A 21A 2.69 6.32 0.652 15/23 1.533 3.17 7.45
WIN8517 17 3.57 4.75 0.867 26/30 1.154 4.21 5.60 WIN8527 27 2.67 6.37 0.647 22/34 1.545 3.15 7.51
WIN8517A 17A 3.53 4.81 0.857 24/28 1.167 4.17 5.67 WIN8543 43 2.64 6.44 0.644 16/25 1.563 3.11 7.59
WIN8508A 8A 3.51 4.84 0.852 23/27 1.174 4.14 5.70 WIN8528 28 2.61 6.51 0.633 19/30 1.579 3.08 7.67
WIN8508 8 3.49 4.87 0.846 22/26 1.182 4.11 5.74 WIN8528A 28A 2.59 6.54 6.30 17/27 1.588 3.06 7.71
WIN8519 19 3.46 4.91 0.840 21/25 1.190 4.08 5.78 WIN8529 29 2.58 6.59 0.625 15/24 1.600 3.04 7.77
WIN8509A 9A 3.43 4.94 0.833 25/30 1.200 4.05 5.83 WIN8539 39 2.56 6.64 0.621 18/29 1.611 3.02 7.83
WIN8509 9 3.40 4.99 0.826 19/23 1.211 4.02 5.88 WIN8530 30 2.54 6.70 0.615 26/16 1.625 2.99 7.89
WIN8511 11 3.36 5.06 0.815 22/27 1.227 3.96 5.96 WIN8540 40 2.53 6.72 0.613 19/31 1.632 2.98 7.93
WIN8503 3 3.32 5.11 0.806 25/31 1.240 3.92 6.02 WIN8541 41 2.50 6.81 0.607 17/28 1.647 2.95 8.00
WIN8513 13 3.30 5.15 0.800 20/25 1.250 3.89 6.07 WIN8531 31 2.47 6.87 0.600 21/35 1.667 2.92 8.10
WIN8518 18 3.27 5.20 0.793 23/29 1.261 3.85 6.12 WIN8533 33 2.42 7.00 0.588 20/34 1.700 2.86 8.26
WIN8518A 18A 3.24 5.24 0.786 22/28 1.273 3.82 6.18 WIN8531A 31A 2.40 7.06 0.583 21/36 1.714 2.84 8.33
WIN8504A 4A 3.22 5.26 0.783 18/23 1.278 3.80 6.21 WIN8530A 30A 2.38 7.14 0.577 15/26 1.733 2.80 8.42
WIN8520A 20A 3.20 5.30 0.778 21/27 1.286 3.78 6.25 WIN8550 50 2.35 7.21 0.571 35/20 1.750 2.78 8.50
WIN8504 4 3.19 5.32 0.774 24/31 1.292 3.76 6.27 WIN8551 51 2.34 7.27 0.567 30/17 1.760 2.75 8.57
WIN8520 20 3.17 5.36 0.769 20/26 1.300 3.74 6.31 WIN8552 52 2.32 7.32 0.563 32/18 1.778 2.73 8.64
WIN8522 22 3.13 5.42 0.760 19/25 1.316 3.69 6.39 WIN8554 54 2.29 7.42 0.556 15/27 1.800 2.70 8.74
WIN8516 16 3.09 5.49 0.750 18/24 1.333 3.65 6.48 WIN8555 55 2.27 7.47 0.552 29/16 1.813 2.68 8.80
WIN8510 10 3.05 5.57 0.739 17/23 1.353 3.59 6.57 WIN8556 56 2.26 7.51 0.548 31/17 1.824 2.67 8.86
WIN8510A 10A 3.02 5.62 0.733 22/30 1.364 3.56 6.62 WIN8557 57 2.20 7.73 0.533 30/16 1.875 2.59 9.11
WIN8534A 34A 3.00 5.67 0.727 16/22 1.375 3.54 6.68 WIN8558 58 2.19 7.76 0.531 32/17 1.882 2.58 9.14
WIN8534 34 2.97 5.69 0.724 21/29 1.381 3.52 6.71
4400 Series 6-Spline Quick Change Gears For 8-3/8" Rears
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3.78 Axle Ratio 4.11 Axle Ratio 4.33 Axle Ratio
Gear Low Spur High Spur No. Of (9-34 Teeth) (9-37 Teeth) (9-39 Teeth)
Part No. Set No. Ratio Ratio Teeth Low High Low High Low High
WIN4401 1 1.000 1.000 24/24 3.78 3.78 4.11 4.11 4.33 4.33
WIN4402 2 0.958 1.043 23/24 3.62 3.94 3.94 4.29 4.15 4.52
WIN4403 3 0.920 1.087 23/25 3.48 4.11 3.78 4.47 3.98 4.71
WIN4403B 3B 0.895 1.118 17/19 3.38 4.22 3.68 4.59 3.87 4.84
WIN4403A 3A 0.880 1.136 22/25 3.33 4.30 3.62 4.67 3.81 4.92
WIN4404 4 0.846 1.182 22/26 3.20 4.47 3.48 4.86 3.66 5.12
WIN4405 5 0.808 1.238 21/26 3.05 4.68 3.32 5.09 3.50 5.36
WIN4405A 5A 0.792 1.263 19/24 2.99 4.77 3.25 5.19 3.43 5.47
WIN4406 6 0.778 1.286 21/27 2.94 4.86 3.20 5.28 3.37 5.57
WIN4424 24 0.767 1.304 23/30 2.90 4.93 3.15 5.36 3.32 5.65
WIN4425 25 0.750 1.333 18/24 2.84 5.04 3.08 5.48 3.25 5.77
WIN4407 7 0.741 1.350 20/27 2.80 5.10 3.04 5.55 3.21 5.85
WIN4423 23 0.727 1.375 16/22 2.75 5.20 2.99 5.65 3.15 5.95
WIN4408 8 0.714 1.400 20/28 2.70 5.29 2.94 5.75 3.09 6.06
WIN4422 22 .704 1.421 19/27 2.66 5.37 2.89 5.84 3.05 6.15
WIN4409 9 0.696 1.438 16/23 2.63 5.43 2.86 5.91 3.01 6.22
WIN4410 10 0.682 1.467 15/22 2.58 5.54 2.80 6.03 2.95 6.35
WIN4411 11 0.667 1.500 18/27 2.52 5.67 2.74 6.17 2.89 6.50
WIN4412 12 0.655 1.526 19/29 2.48 5.77 2.69 6.27 2.84 6.61
WIN4413 13 0.652 1.533 15/23 2.47 5.80 2.68 6.30 2.82 6.64
WIN4414 14 0.636 1.571 14/22 2.41 5.94 2.62 6.46 2.76 6.80
WIN4415 15 0.625 1.600 15/24 2.36 6.05 2.57 6.58 2.71 6.93
WIN4416 16 0.615 1.625 16/26 2.33 6.14 2.53 6.68 2.66 7.04
WIN4417 17 0.600 1.667 18/30 2.27 6.30 2.47 6.85 2.60 7.22
WIN4418 18 0.591 1.692 13/22 2.23 6.40 2.43 6.96 2.56 7.33
WIN4418A 18A 0.571 1.750 16/28 2.16 6.62 2.35 7.19 2.47 7.58
WIN4419 19 0.560 1.786 14/25 2.12 6.75 2.30 7.34 2.42 7.73
2019-20 CIRCLE TRACK PARTS AND ACCESSORIES 787