JD A Tires

Randy K. Crump · Nov 11, 2017

The forum said earlier that 13.6X38 was the best tire for my 1951 JD A. The rim measures 11 inches. On the outside of the
13.6X38 tire it says a 12 inch rim is required. It has the original 11x38 tires on it now. What is the best size based on the 11
inch rim?

David G · Nov 11, 2017

You will be fine, 12" is optimum.

old popper · Nov 11, 2017

I have 13.6 X 38 tires on my '48 A and they fit like a glove. I'm sure it has 11" rims also.

Brendon-KS · Nov 11, 2017

Per the Tire & Rim Association book the 11" rim is an approved alternate width for the 13.6-38 tire. The tire dimensions you see in tables would be when mounted on a 12" rim which is the "ideal" width but the 11" will work perfectly fine. All tires have a recommended rim width but many also have an additional approved size (usually one inch narrower) and this is one of those cases.

Kent Petersen · Nov 12, 2017

Take your tape and go from inside to inside and i will bet they are 10in rims i have never seen any 11in rims

Brendon-KS · Nov 12, 2017

There's nothing unusual about 11" rims - that's what my Farmall 350 has. The description in the parts catalog is "RIM, power adjusted rear wheel, w/six rails (W11-38 rim for 12-38 tire)". 11-inchers are also readily available in the aftermarket.

BushogPapa · Nov 13, 2017

The JD "A" came with 11" wide rims and 13.6x38" will work just fine..

My JD "B" had 10" rims and I traded for a set from a JD "A" and put 13.6x38" on them and they ( and it) look Great...!!

JD A Tires

Randy K. Crump

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David G

Well-known Member

old popper

Well-known Member

Brendon-KS

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Kent Petersen

Well-known Member

Brendon-KS

Well-known Member

BushogPapa

Well-known Member

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