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  Main drive gears
   
Main Drive Teeth:    21/26  21/27  21/28  18/25
Main Drive Ratio:   1.238 1.286 1.333 1.389
Main Drive Part#:    101443M  101421M  101404M  101382M
Tooth count Ratio Part#   First gear with integral shaft
     
33/15 2.200  101167C 2.724 2.829 2.933 3.056
32/15 2.133  101181C 2.641 2.743 2.844 2.963
32/16 2.000  101207C 2.476 2.571 2.667 2.778
31/17 1.824  101249C 2.258 2.345 2.431 2.533
Tooth count Ratio Part# First, Second and Third gears
     
30/17 1.765 101265 2.185 2.269 2.353 2.451
30/18 1.667 101291 2.063 2.143 2.222 2.315
29/18 1.611 101307 1.995 2.071 2.148 2.238
29/19 1.526 101335 1.890 1.962 2.035 2.120
27/18 1.500 101343 1.857 1.929 2.000 2.083
26/18 1.444 101362 1.788 1.857 1.926 2.006
25/18 1.389 101382 1.720 1.786 1.852 1.929
26/19 1.368 101393 1.694 1.759 1.825 1.901
28/21 1.333 101404 1.651 1.714 1.778 1.852
27/21 1.286 101421 1.592 1.653 1.714 1.786
24/19 1.263 101432 1.564 1.624 1.684 1.754
26/21 1.238 101443 1.533 1.592 1.651 1.720
24/20 1.200 101459 1.486 1.543 1.600 1.667
23/20 1.150 101480 1.424 1.479 1.533 1.597
26/23 1.130 101491 1.400 1.453 1.507 1.570
25/23 1.087 101511 1.346 1.398 1.449 1.510
25/24 1.042 101534 1.290 1.339 1.389 1.447
24/24 1.000 101556 1.238 1.286 1.333 1.389
24/25 0.960 101577 1.189 1.234 1.280 1.333
23/25 0.920 101593 1.139 1.183 1.227 1.278
23/26 0.885 101611 1.095 1.137 1.179 1.229
20/23 0.870 101620 1.077 1.118 1.159 1.208
20/24 0.833 101639 1.032 1.071 1.111 1.157
21/26 0.808 101654 1.000 1.038 1.077 1.122
20/25 0.800 101659 0.990 1.029 1.067 1.111
21/27 0.778 101671 0.963 1.000 1.037 1.080
21/28 0.750 101688 0.929 0.964 1.000 1.042
18/25 0.720 101706 0.891 0.926 0.960 1.000
18/26 0.692 101723 0.857 0.890 0.923 0.962
18/27 0.667 101735 0.825 0.857 0.889 0.926
19/29 0.655 101739 0.811 0.842 0.873 0.910
rev 2003/05/07
 

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Andrews Products, Inc.
431 Kingston Ct.
Mount Prospect, IL
60056

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