They also us 72dp pinions with 80dp gears and it does work as that is what I have on my GP12 saloon. Why it works I don't know
conical pinion and gear set up
the new black arrow car has a conical pinion and gear set up. is it like the old brass setups or is it to get perfect gear mesh with a normal toothed crown gear. or move it off centre. is there an advantage over the old brass setups, where you have a lot of contact area. john
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