I agree with the above comments about grease.
We used AndyMark gears (which obviously are in AndyMark gearboxes) on all sorts of stuff. We reuse the heck out of them year to year, prototype to prototype as well. There isn't a 50 Tooth gear in our shop that hasn't been run a great deal.
In the 100+ AndyMark gears we've used in the last five seasons, only one was defective in manufacture (the hex bore was not aligned to the teeth and this gear wore oddly, but not enough to cause failure).
Quote:
Originally Posted by pauline589
Do any of you build/design your own gearboxes?
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We designed and built 90% of the gearboxes on 973 vehicles for the last four seasons, plus numerous offseason items. As stated above, easily 80% of the gears in these gearboxes are sourced from AndyMark.