trans. case question

[ldfly112]

Is the transmission case the same for a 4 speed or a 3 speed reverse

[Rubone]

What make, what model?

[ldfly112]

my trans. case is a harley and has a date code 1945 it is a 4 speed

[MMasa]

Yes. The case is the same. Is there a small idler gear installed in the bottom of the case?
Mark

[ldfly112]

no gears yet I have a good case . Im considering a 3 speed with reverse for my 1937 UL. what are your thoughts

[MMasa]

Is it a sidecar rig?

[Rubone]

Are you trying to be correct for '37? The internal parts are different than later types.

[Jerry Wieland]

no gears yet I have a good case . Im considering a 3 speed with reverse for my 1937 UL. what are your thoughts

1937 had a RN123 shift pattern and 1939 and newer has R1N23, Mostly different gearset. Jerry

[ldfly112]

Yes im considering a sidecar. Where is a good source for finding the gearset and would I be better off with the 37 gearset or the 39 and newer

[Jerry Wieland]

Yes im considering a sidecar. Where is a good source for finding the gearset and would I be better off with the 37 gearset or the 39 and newer

I personally much prefer 4 speeds forward than 3 speeds forward with a reverse. The first year I ran a sidecar I had a reverse transmission in the bike and ditched it the 2nd year - I never had a problem finding a parking spot that I could drive out of. I have no experience riding a bike with an early reverser although I have rebuilt a few of them. I find the late reverser 'cantankerous'.

Jerry

[duffeycycles]

3 spd gearsets are not easy to get,early or late style.I have an extra reverse shift fork for the later style.

[ldfly112]

Thanks for the advise I will be going to Wausen next month to see if i can find anything

[Rubone]

I have a reverse gear for the countershaft for a 36-38 box available.

[duffeycycles]

Here is a pic of the later 3spd reverse gearset
& my extra parts

IMG_0872.JPGIMG_0871.JPG

[duffeycycles]

V Twin sells the reverse idler gear & shaft
The countershaft cluster gear has an R stamped on the end of high gear

IMG_0879.JPG