bob buzzard Posted November 28, 2018 Report Share Posted November 28, 2018 I'm attempting to convert a top-cover from the push-fit plugs holding the detent springs in place(156665), to the screwed type (108166). I have tapped the holes out to 7/16" UNF and have some brass threaded rod to match but I don't have a pattern to hand. Could someone with a collection of gearbox bits let me know how thick/deep the screwed plugs should be? Any advice welcome Quote Link to post Share on other sites
Mike C Posted November 28, 2018 Report Share Posted November 28, 2018 My guess is 6-7 threads , see about 1/4 way through Buckeye's article: http://www.buckeyetriumphs.org/technical/Gearbox/GearboxCover/GearboxCover.htmhttp://www.buckeyetriumphs.org/technical/Gearbox/GearboxCover/GearboxCover.htmhttp://www.buckeyetriumphs.org/technical/Gearbox/GearboxCover/GearboxCover.htm Quote Link to post Share on other sites
dingle Posted November 28, 2018 Report Share Posted November 28, 2018 I just measured one-They are .250" length, about 4 threads, flat face on bottom and a screwdriver slot on top.. Berry Quote Link to post Share on other sites
bob buzzard Posted November 30, 2018 Author Report Share Posted November 30, 2018 Thanks very much for your responses, guys, that's exactly what I needed. Cheers Rob Quote Link to post Share on other sites
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