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jakesnider83 
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Joined: 18 Aug 2021
Location: Cumming, GA
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 Topic: IB's Serial Number Question
Posted: 18 Aug 2021 at 5:58am |
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Does anyone know if an Allis IB serial number of B603 is correct for the Industrial series? From what I can tell it would make the tractor a 1938 model year. All the literature I have read on the IB's shows they started in 1939. Looking for anyone who might know information on the IB's or could point me in the direction of someone who could help.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 18 Aug 2021 at 9:34am |
Allis started building B model tractors in 1937.. By 1938 they had their own engine. The industrial version, the IB was built right along with the model B and had the same serial numbers Bxxxx... So you COULD have a 1938 model IB..
After the war the IB started back into production with its OWN serial numbers IB xxxx.
Post a few picturs... im sure everyone would be interested.. I have seen a 1939, but never a 1938.
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 18 Aug 2021 at 9:44am |
The 1939 IB i saw had a 3-4 piece brake rod on each side ... like the picture below. They might have connected together with one HAND brake rod on the right fender area ?? Later the rods were one big curved bar and connected to two foot pedals.... Also note the SQUARE foot pedal on the right side..
Edited by steve(ill) - 18 Aug 2021 at 9:45am
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 18 Aug 2021 at 9:48am |
1952 IB brake rods and pedals.
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Like them all, but love the "B"s.
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GreenOrange
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Posted: 18 Aug 2021 at 10:42am |
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Steve’s pictures regarding the brakes are the easiest way to differentiate between the pre-war (2 independent hand and 1 foot) and post war (2 independent foot and 1 hand). Cool to see a pintle on the 39 too. 1939 is when they started IB production, but certainly there would have been pre-production/prototype models. Lots of differences, some large and some small, between the first 260 (pre war) and the dedicated IB serial numbered models(post war). There were also several differences between the 3 batches made during 39, 40 and 41 which makes it even more interesting.
Edited by GreenOrange - 18 Aug 2021 at 11:24am
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jakesnider83
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Posted: 18 Aug 2021 at 12:57pm |
Steve, this is extremely helpful and thank you. The main reason I am asking is I found an IB for sale that was in Antique Power in 2004. It was noted as a 1938 with serial IB603. The tractor I saw in person matches the article image exactly and I believe to be the same tractor, however that serial number is IB3040 which should make it a 1954 model. My assumption is the article just had the production year wrong, so that is the reason I was asking about the 3 digit serial number. It is still a nice running machine but it would be great to validate the story.  
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steve(ill)
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Posted: 18 Aug 2021 at 1:28pm |
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that wire harness up the side of the gas tank sure makes it look like the same tractor.. And the front rim being silver and orange also backs that up ( most were just orange).... decals match, black cap on the air cleaner... sure looks like the same tractor.
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Like them all, but love the "B"s.
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steve(ill)
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Location: illinois
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Posted: 18 Aug 2021 at 1:30pm |
a B or IB tractor from 1938-39 would not have those car type 5 bolt rims on the front end.. They were "different" prior to 1940.
and your right, there is no "IB603" ........... in 1938 it would have been B603.
Edited by steve(ill) - 18 Aug 2021 at 1:32pm
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Like them all, but love the "B"s.
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jakesnider83
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Posted: 18 Aug 2021 at 2:50pm |
That is exactly what I thought. The pictures are spot on but the article is off. I am hoping to prove that this tractor truly was used by the maintenance team for both the Milwaukee and Atlanta Braves but the differences in the article is concerning. I appreciate your help with this one and will let you know how it goes.
BTW there are (2) IB's in this collection. The other is a 1955 serial number IB3105. Both are older restorations but very cool to see two of them together given such low productions numbers.
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