Allis Chalmers B - Upgrade PTO shaft from 1/8 to 3/8

dcwatson84

New User
I'm thinking of upgrading the old 1 1/8 PTO shaft to the standard 1 3/8 PTO shaft size on my old Allis Chalmers B. Is this possible? Someone recommended it in another forum (wont let me post link).
But I can't seem to find a replacement shaft for my B (even with the original shaft size). Am I searching for the wrong part name?
 
I cannot be 100% sure but yes I believe they had that option or should I say part. I know my C has the 1-3/8 PTO shaft and it should be if I remember right the same as the B used.

Post this question in the A/C forum down below and I bet you get more info
 
Tractor Supply used to sell a sleeve you slipped over the 1-1/8" shaft that was 1-3/8". Should be on the
shelf in your local farm & Fleet right next to over-running pto clutches. Do a search on PTO sleeve, comes
up for $10 and change on AMAZON, hurry, only 5 left.
 

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