Allis B - Adjustable wide front
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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=34185
Printed Date: 08 Sep 2025 at 2:53pm
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Topic: Allis B - Adjustable wide front
Posted By: 1953CA
Subject: Allis B - Adjustable wide front
Date Posted: 19 Jul 2011 at 9:22pm
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I have a few questions;
How many adjustable wide front B's were made?, What years were they made? And how do you tell if its a pre/post war B?
I'm looking at a 1940 adjustable wide front B, is the reason I'm asking.
Andrew
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1945 AllisCletrac / 1948 "B" / 1953 "CA" / 1955 "WD-45" / 1963 "D-15 Series II"
"No Air Support without Ground Support"
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Replies:
Posted By: MNLonnie
Date Posted: 19 Jul 2011 at 9:32pm
They were available in arched and straight adjustable fronts in all years, according to the book the straight axles started in 1940 but I think the arched might have still been available, not sure. Don't know of a pre/post war difference.
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Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker
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Posted By: RichinWis
Date Posted: 19 Jul 2011 at 11:32pm
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Yes they were avalible in both just like Lonn said.
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Posted By: MilesGray (CO/KS)
Date Posted: 20 Jul 2011 at 12:12am
I have two B's, a 1938 that has been redone professionally that has a straight adjustable front as well as a 1940 with a straight adjustable front. The '40 appears to be original, I can't say whether the '38 is original, though I doubt it, since most came with the wishbone front. The early wishbone adjustable fronts had a bar that extended through a hole in the wishbone that could be locked in place with clamps on either side. I have only seen one of this type, so I might be wrong about how it is adjusted.
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Miles Gray (CO/KS)
5 1938 B's, 1940 B, 1944 WF C, 1948 NF C, Gleaner A, White Top Rotobaler, 1957 IH Golden Jubilee... I'm either a collector, or crazy!
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Posted By: Ken in Texas
Date Posted: 20 Jul 2011 at 7:42am
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The AC Parts Books indicate they made both the Arched Adjustable and The Tall Straight Adjustable each in two different widths. Wide and wider. I have only seen a photo of one wide, 50" to 60", version of the Arched Adjustable on this forum. Narrow ones are pretty common. They adjust 38" to 48"
The early tall straight adjustables, prior to 42 were adjustable 38" to 60". 42 and up were 40" to 65". I presume to be used with the flanged axle final drives and C reversable hubs. I'm not real sure of when the B with the flanged axle went into production. Most all of them you see are post war Bs of 50 and up vintage.
It is pretty easy to swap out the front axle assemblies and final drives and any B. You have to remember this when sombody says their 38 B has a wide version of a straight adjustable axle. Transmissions and engines swap out easy too.
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Posted By: 1953CA
Date Posted: 20 Jul 2011 at 9:35am
Thats what I was wondering, if the adjustable wide front was original to the 1940 B, I'm debating to swap out my arched front end on my 48 for this one, or keep the 40 as is.
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1945 AllisCletrac / 1948 "B" / 1953 "CA" / 1955 "WD-45" / 1963 "D-15 Series II"
"No Air Support without Ground Support"
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