BN

Farmall B & BN Tractors, 1939-1947
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Bob McCarty
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BN

Postby Bob McCarty » Wed Mar 27, 2024 8:14 pm

A BN was donated to our farm show to be sold at our fund raising auction at our fall show. Is the rear wheel width the only difference between a B and a BN ? This one has a single front wheel. I need to check the SN to verify the year.
"We don't need to think more,
we need to think differently."
-Albert Einstein

Jim Becker
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Re: BN

Postby Jim Becker » Wed Mar 27, 2024 10:27 pm

The only difference between the B and BN is 8 inches of width. This is done by using axles and axle housings that are each 4 inches shorter. Consequently, there are a few other parts that need to be changed to fit the available space: platform, drawbar, cross bar for the swinging drawbar.

Bob McCarty
Team Cub
Team Cub
Posts: 11891
Joined: Tue May 25, 2004 8:02 pm
Zip Code: 80501
Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
Circle of Safety: Y
Location: CO, Longmont

Re: BN

Postby Bob McCarty » Wed Mar 27, 2024 10:41 pm

Thanks Jim.
"We don't need to think more,
we need to think differently."
-Albert Einstein

KJB
Posts: 9
Joined: Thu Dec 14, 2023 7:47 am
Zip Code: 34269
Tractors Owned: 1940 Farmall B
1948 Ferguson TE20
Location: Florida & Wisconsin

Re: BN

Postby KJB » Tue Apr 09, 2024 5:32 am

Interesting. I picked up a B last fall just before I departed for Florida for the winter. Will be returning to Wisconsin in May and anxious to "play" with my new toy. I wondered if it was easy or even possible to convert a B to a BN and it seems like it would be if you find a donor or at least the right parts. My motivation for doing this would be to save space in storage and if I purchased a trailer to haul it. Less width would be a plus.

Gary Dotson
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49 Leader "D" (Princess)
49 Leader "D" very rough
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Kubota B6200E
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Re: BN

Postby Gary Dotson » Tue Apr 09, 2024 7:45 am

It should be a pretty straight forward conversion, you just need to score the components Jim mentioned, above. JP Tractor Salvage might make the pieces you need.

Jim Becker
Team Cub
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Re: BN

Postby Jim Becker » Tue Apr 09, 2024 11:00 am

There are trailers out there that a B will fit between the fenders. You may have to limit the tractor to rear tires no bigger than 9.5-24 set to the minimum width. That gets you inside of 74", which works with a lot of trailers. Go wider and the options get more limited.

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T-Mo
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Re: BN

Postby T-Mo » Wed Apr 10, 2024 4:48 am

I hauled a B on a trailer a few years ago. You have to move the rear end into it's narrowest position. My B was 79 inches from outside of the tires, and my trailer was 83 inches between the fenders.

KJB
Posts: 9
Joined: Thu Dec 14, 2023 7:47 am
Zip Code: 34269
Tractors Owned: 1940 Farmall B
1948 Ferguson TE20
Location: Florida & Wisconsin

Re: BN

Postby KJB » Wed Apr 10, 2024 5:10 am

Thank you. I appreciate the replies.


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