Farm Equipment - bolt sizes

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bolt sizes

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=15497
Printed Date: 04 Feb 2025 at 12:06pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: bolt sizes

Posted By: john2189
Subject: bolt sizes
Date Posted: 20 Jul 2010 at 10:57pm

did differant year B's final drive bolt holes for the drawbar have differant sizes ? the 48 b i have at work has 3/4'' bolts and the 41 and 45 B at home has 1/2'' holes. dosnt look like the bigger one was drilled out and threaded bigger

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'41 Allis B
'45 Allis B
'49 Farmall Cub
'72 IH Cub

Replies:

Posted By: Dick L
Date Posted: 21 Jul 2010 at 5:03am

Early B's had 1/2" holes and the later ones had 5/8" holes. If yours have 3/4" holes it would have been a repair job some time or other.
If the person had the proper tools I wouldn't know how you could tell anything by looking at it.