Quote:
Originally Posted by hellmet
whats the differance in a 20 shell and 18. thanks
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If any difference, it'll be the difference in dimension between the radius where it mounts on the torque tube, and the centerline of the pin that the gear turns on. Remember that the outside diameter of some of these gears change as the tooth count changes. A "20" housing MAY hold a "17" gear's teeth too far away from the driven gear to mesh properly. That's why the housings are numbered to begin with. DD