Farm Equipment - AC 170-175 weight bracket?

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AC 170-175 weight bracket?

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=136563
Printed Date: 03 Oct 2025 at 4:38pm
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Topic: AC 170-175 weight bracket?

Posted By: Tracy Martin TN
Subject: AC 170-175 weight bracket?
Date Posted: 24 Mar 2017 at 10:21pm

When attaching a factory weight bracket on a 170-175,do you use existing bolts, or buy longer ones? Thanks Tracy

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Replies:

Posted By: ranger42
Date Posted: 28 Mar 2017 at 8:17am

I put a bracket and 5 weights on my 170 several years ago and used the factory bolts. I think someone said if you have 3/4 to inch thread left to tap in should be go to go. that's about what I had left and have had no issues.

Posted By: allisbred
Date Posted: 28 Mar 2017 at 8:26pm

When I removed the bracket from the 175, I had to add 2 washers to keep the bolts from bottoming out. I believe the machinery handbook requires 1.5 x the bolt Dia in cast iron @ full threads= shear point of bolt (max load required to shear bolt). Hope this helps, Kevin