[choppercopper1]

Stupid question but look who it is comming from. I have no idea when it comes to big twin transmissions. I started to do research for one for my 49 Pan and have no idea what to look for. Last Pan/Shovel came with motor and trans and I didn't have to mess with it. I just don't want to buy something that I can't use or I will have to change all the parts over so it will work with my project. Last trans I did was on a pre unit Triumph and it took me a week to get everything right. That sucked!!!!! I have done a Evo Sporty and that was cake but never did a big twin. Can anyone tell me what I should look for? Don't need a case for electric start, kick only. What is the difference between years and the shaft? Mind you this is going in a VL frame w/ a 49 Pan. Would like to set it up with a 2 inch belt but I can figure that out, I think. Thank in advance and sorry for the stupid question.
Jason

 

[Irish Rich]

It's simple, all Harley 4sp mainshafts from '37-'64 are all the same.

All the 4 sp mainshafts from '65-'69 are the same.

All the 4 sp mainshafts from '70-'85 chain drive are the same, and the 4 sp belt drive mainshafts are the same from '84-'85.

 

[choppercopper1]

Thanks Rich!!!

 

[tom]

here is a basic tech article on 4 speeds. it gives a quick overview of the ratchet & rotary top and also replacing the main seal. earlier ratchet top 4 spd cases didn't have the outbard bearing support (key improvement!!) and many dont like the rotary top but I do.

http://www.bikernet.com/garage/PageViewer.asp?PageID=177

 

[choppercopper1]

Tom

Thanks! That is a excellent site. Much needed info.

 

[Panhead Jim]

Go over to eBay and get two manuals, RIGHT NOW! The original 48-57 rigid manual (yes it's there), and the CLYMER Panhead manual (covers all years of the pan). Will cover everything you need to know, including complete overhaul. Have used both of these manuals extensively, and find them both excellent. The CLYMER leaves a few details to be desired, but come to think of it, the original shop manual does, too. You should be able to get them for around $20 each. Best $40 you ever blew! Good luck!

 

[VAsteven]

Yeah...what Irish Rich said...it's pretty simple.

I think if you're cobbling a pan/vl bike together you need to buy Bruce Palmer's How to Restore your Harley Davison. That book is worth its weight in gold. I read alittle bit from it every night. You'll become addicted too.