3rd gear bushing fit

[Jerry Wieland]

Third gear is probably the highest stressed gear in a HD 4 speed gearbox due to it's offset. I always try to stay below .0015" for clearance.

Jerry

What year book are you looking at? The info is in the specs in the Panhead service manuals. From '59 up the bushing was eliminated on 4 speeds so late info won't show it. .001-.002 to shaft.

https://www.hydra-glide.net/joomla/i...ission-general

[Omarttentmaker]

I was looking on the page in the knucklehead manual. There didn't seem to be a lot of info there. And I do have a '59 and up gear, but not the matching cluster, so I'm using the gear with the bushing in it. Thanks for posting the answer. Gotta wolf down some bird and then get back to work!

[Rubone]

What year book are you looking at? The info is in the specs in the Panhead service manuals. From '59 up the bushing was eliminated on 4 speeds so late info won't show it. .001-.002 to shaft.

https://www.hydra-glide.net/joomla/i...ission-general

[Omarttentmaker]

Can't seem to find a tolerance for the fit between the bushing i.d. and the mainshaft for a 3rd gear in a big twin transmission. I know the manual calls out the bearing fits, but I guessed that referred to the needle bearings in the countershaft and the main drive gear. Does anybody have that elusive bit of info?