Would some please tell me the true details of a Farmall BN? I know what an A is and what a B is but not what BN is. I've looked at a lot of pictures but no luck. Does it have a narrower wheel span than a B? Please teach me the details. I even have the letter book of Farmalls but it don't pick it out. Al
- Thread starter al71
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gene bender
Well-known Member
The BN is narrower than the B by 8in drawbar would also be narrower and platform also 4in narrower than a B outside of that the same.
tracto-man
Member
Friend of mine has one with very low original hours. Very much like a B but not as wide. I've looked around on line a bit and can't seem to find much about them. I can take some pics next time I'm over that way if it would help. I think it has the same engine as an A. They are very popular parade tractors around here since they fit a trailer better then a B and are pretty light.
Athol Carr
Member
A Farmall BN is a Farmall B with an 8 inch narrower wheel track at the back. The width of the rear axle carriers is the same as a Farmall A (4 inches shorter than a B and the seat support is the same as on a Farmall A, attached to the end of the axle housing. The drawbar is narrower to match. All other features are the same as for a Farmall B,
If the B axle hsgs are the same as the right side of an A then an A would be 8 inches shorter than a B if the A had two axles of the same length. So the A and BN are small width tractors and the B are 8 inches wider and I don't know about the C which must be wider. What tractors had wide and narrow front ends? Also what tractor got the tri-cycle front ends ? Many thanks to all who have contributed to the clearing info of which was confused. Al
As said, the B and BN are the same tractor except the 4" shorter housings and corresponding 8" narrower drawbar. You can spot a BN easily if equipped with the original seat by the seat support almost touching the fender on the BN. There will be a 4" gap on the B between the right fender and the seat.
The B and BN came with a narrow front, either two wheels or a single wheel. The A only had a wide front.
Not that things haven't been mixed and matched over the years but above is how they come from the factory from what I know. I've even seen a picture of a B without the axel housings, not factory. Talk about narrow!
The B and BN came with a narrow front, either two wheels or a single wheel. The A only had a wide front.
Not that things haven't been mixed and matched over the years but above is how they come from the factory from what I know. I've even seen a picture of a B without the axel housings, not factory. Talk about narrow!
willie in mn
Well-known Member
I think what has you confused is the offset setup of the A. Assuming that no modifications have been made-
The A has an 18 inch axle extension on the right side ONLY. There is no axle extension on the left side, the left final drive/drop box is bolted directly to the differential case. The seat bracket will be tight against the right fender, it will have a wide front axle.
The BN will have an 18 inch axle extension on BOTH sides, seat bracket will be tight against the fender, it had single front wheel.
The B has a 22 inch axle extensions on BOTH sides, there will be a 4 inch gap between the seat & fender. Front had narrow, 2 wheel setup, although I think single front wheel was an option.
Engine, transmission, gear train was the same for all 3 models.
The C was a completely different machine, replacing the B in 48. Engine & transmission the same, but axles extended directly from the differential with sliding hub style wheel spacing. The seat platform was on top of diff & centered, along with steering wheel.
I know this is as clear as mud, but it covers the ground.
Willie
The A has an 18 inch axle extension on the right side ONLY. There is no axle extension on the left side, the left final drive/drop box is bolted directly to the differential case. The seat bracket will be tight against the right fender, it will have a wide front axle.
The BN will have an 18 inch axle extension on BOTH sides, seat bracket will be tight against the fender, it had single front wheel.
The B has a 22 inch axle extensions on BOTH sides, there will be a 4 inch gap between the seat & fender. Front had narrow, 2 wheel setup, although I think single front wheel was an option.
Engine, transmission, gear train was the same for all 3 models.
The C was a completely different machine, replacing the B in 48. Engine & transmission the same, but axles extended directly from the differential with sliding hub style wheel spacing. The seat platform was on top of diff & centered, along with steering wheel.
I know this is as clear as mud, but it covers the ground.
Willie
farmerwithmutt
Well-known Member
We did that in high school shop class just
dropped the axle off and bolted right up
it had a bad motor and made a good
demonstrater.
dropped the axle off and bolted right up
it had a bad motor and made a good
demonstrater.
Athol Carr
Member
Some Farmall BN had the dual wheel narrow front end, the single wheel was the other option at the front.
Athol Carr
Member
Here is a Farmall BN with dual front wheels.
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