J D Model B

J

Jim in polk co

Member

• Jan 17, 2017

• #1

I'm wondering what kind of a road gear that a 1945 B has with 12/38 tires ? Would it be fast enough to be comfortable on tractor rides ?

 

old popper

Well-known Member

• Jan 17, 2017

• #1

Some of those "middle 40s" B tractors had a pretty lively road gear. Also considering it came with 10/38 tires or smaller, it should scoot right along.

 

B

BushogPapa

Well-known Member

• Jan 17, 2017

• #1

From what I can glean from my book, you do not want a JD "B" with a 4-speed trans..top speed was 6.75 MPH..

The 6 speed models may be more what you want...

 

greenmech

Well-known Member

Location

Lakeville MN

• Jan 17, 2017

• #1

The 45 B will go over 12 with 38 tires I think. Ron Mn

 

M

Mike N Mo

Member

• Jan 17, 2017

• #1

The Nebraska test data lists 6th gear as 12.25 MPH. This would be on 10X38 (new size 11.2X38) tires, and at 1150 engine RPM. This data is from test #366, in 1941. To the best of my knowledge (without checking parts books) the standard transmission gears should be the same up to 1947 (pressed steelframe/straight 6 speed). The 12-38 tires would give a 3-4% increase, and you can bump the RPM's up 5-10%. This should get you a speed of 13.5-14 MPH. Won't keep up with a Farmall M, but not too bad.

 

Loosehandle

Well-known Member

Location

Wisconsin

• Jan 17, 2017

• #1

I'm guessing this is already turning into tractor
Racing rather than riding...

 

M

MARV2015

Member

• Jan 17, 2017

• #1

Sounds like it would be hard pressed to even keep up with an old F-20 Farmall with a road gear!!!

 

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Mike M

Well-known Member

• Jan 18, 2017

• #1

Expect a nice leisurely ride. None of the JD models were very fast on the roads. I had a model 530 and had to go down the road a few miles. I pulled out right behind an Amish buggy. On the flat we were about the same speed. Up hill I was gaining on him and down hill he pulled away from me. If you are by yourself it will be fine but if in a group ride you will get left in the dust by the Farmalls ! Those models of B's if still all-fuel pistons are real dogs too.

 

B

Ben.So.Tex

Member

• Jan 18, 2017

• #1

The hand crank 45 B my Father bought new has always run about 17 - 18 mph down the road with 11.38 rear tires, and I have it now with the original bill of sale, $1399.00 with equipment.

 

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Ben.So.Tex

Member

• Jan 18, 2017

• #1

I had a 530, it was so slow by the time I got to the field it's shadow would be waiting for me.

 

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kub6040

Well-known Member

• Jan 18, 2017

• #1

It's hard to stay with many other tractors if you ride a JD B I haven't ever been on one that was fast enough to ride except a 40V. Maybe some after market stuff to speed them up?

 

R

RandyB(MI)

Well-known Member

• Jan 18, 2017

• #1

and as for me...show me a line of Farmalls going wide open in road gear and you will see me getting as far away from them as possible. I'm just sure everyone of them has a completely rebuilt steering....lol I've seen what can happen...ain't pretty.

 

H

Hayfarmer

Well-known Member

• Jan 18, 2017

• #1

Sounds like you and I should go on a tractor ride together. I could take my unstyled 1938 G. You get to see the country really well when you drive it down the road. My dad said it went 7mph but not sure it is that fast.

 

C

coonie minnie

Well-known Member

• Jan 18, 2017

• #1

An early styled B like you are looking at will make the hair fly pretty easily. The later ones ('47 and later, up to the 530) were significantly slower.

 

T

The Dukester

Well-known Member

• Jan 18, 2017

• #1

Right....the early styled 6 speed John Deere's with the 2 shifting levers will move along about 14-15 miles an hour wide open in 6th gear, the later styled models with the single shift lever were sorta slow in comparison but would pull a lot more.

 

R

Ray Durham

Member

• Jan 18, 2017

• #1

I own a hand crank 45 model A that I bought about 5 years ago. What do you think it cost new?

 

M

Mike M

Well-known Member

• Jan 19, 2017

• #1

I don't remember mine being that fast ? but I have no way to check it either.
I'm betting if you remove the reverse interlock so you can go into high reverse it would be faster than forward. LOL.

 

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Ben.So.Tex

Member

• Jan 19, 2017

• #1

My 45 B run well with it's 12/38 down the road. Front end wobble a bit, if you run about 15 lbs in one front tire and 30 in the other it will take some of the wobble out. My 2 cents,

 

F

Frank 41

Member

• Jan 22, 2017

• #1

Put your Garmin in your lap and take off. Below 10 mph, it will read in tenths.