1951 Moline model Z rear rim/tire size

[Jeff6614]

Does anyone know the correct original factory stock rear rim and tire size for the 1951 model Z row crop tractor with narrow front end? I've been told that they came stock with 13.6x38 rear tires. I can't find anything to back that up.
 

[t.r.k.]

I am thinking more like 11-38 rims and the modern tire size is 12.9-38. I am sure both the ZBs here are running 12.9-38 tires and the ZB model replaced the ZT.

I am thinking the 13.9-38 tire was correct for some of the UT and UB tractors.
 

[Ill John]

The 11-38 or 12.9x38 would be the correct tire for the ZA,
 

[m-m john]

origonal size is 11-38. witch is 11.2-38. but 12.4-38 are easier to find
 

[Leroy]

11.2 was the 10, 12.4 was the 11 and that was orignal size, 13.6 would be equal to the 12 that would be an oversize but a lot were converted. And there are no 13.9 tires, that number is 13.6, flip the 9 over to get it correct.
 

[MMZAck]

See above specs from an original ZA brochure. The rear rims were 10x38 and the tire size was 11-38, equivalent to a 12.4-38 in the newer tire sizes.

Zack

PS - for more brochures, click the link below.

MM Brochures

 

[LW]

You right on the sizes, but I got a suprise a few years ago, I bought a 13.9 X36 tire new at a auction. My 335 had a 13.6 and a 13.9 on it when I got it.
 

[Jeff6614]

Thanks for the info, guys!