Rear Tractor Tires

J

johnyquest69

Member

• Sep 22, 2019

• #1

I am wondering if I can replace the 16.9-38 on a ford 7600 with a 18.4-38? Thanks!

 

D

David G

Well-known Member

• Sep 22, 2019

• #1

I would look at 18.4 34

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Sep 22, 2019

• #1

I think you can move up one size of tires on that width rim without adverse problems.

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Sep 22, 2019

• #1

(quoted from post at 09:55:50 09/22/19) I would look at 18.4 34

Click to expand...

I think changing rear tires,rims & "centers" would cost a lot more than just tires.

 

S

sotxbill

Well-known Member

• Sep 22, 2019

• #1

yes

 

A

Adirondack case guy

Well-known Member

• Sep 22, 2019

• #1

If you are looking for increased traction, step up to good, not cheap, radial 16.9x38's--------
Loren

 

rustred

Well-known Member

• Sep 22, 2019

• #1

when jumping up to that size tire the rims would need to be wider.

 

O

old

Well-known Member

Location

Camdenton Missouri

• Sep 22, 2019

• #1

When going to bigger tires there is a limit to just how much bigger one can go and still work well and look correct. In theory one needs a rim that is one inch narrower then the tire so if you have 16.9 tires the rim should be 15 inch wide so the 18.4 tires should be on a 17 inch wide rim

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Sep 22, 2019

• #1

18.4X38 tires on tractors I'm familiar with came from factory with on 16'' wide rims

 

C

coshoo

Well-known Member

• Sep 22, 2019

• #1

Replacing 38" tires with 34" is going to be a tight fit. . .

 

E

Eldon (WA)

Well-known Member

• Sep 22, 2019

• #1

(quoted from post at 09:01:59 09/22/19) When going to bigger tires there is a limit to just how much bigger one can go and still work well and look correct. In theory one needs a rim that is one inch narrower then the tire so if you have 16.9 tires the rim should be 15 inch wide so the 18.4 tires should be on a 17 inch wide rim

Click to expand...

The recommended rim is 2" narrower....

 

S

steve_in_mo

Well-known Member

• Sep 22, 2019

• #1

Tough to mount, too.

 

D

David G

Well-known Member

• Sep 22, 2019

• #1

I was looking more at the total height.

 

F

Fordfarmer

Well-known Member

• Sep 22, 2019

• #1

Bias ply, yes you can go up one size
(width), unless you're going to be
running heavy axle loads.

 

OP

OP

J

johnyquest69

Member

• Sep 22, 2019

• #1

Thanks for all the advice. I am going to try and measure rim width and go from there. I don't need radials and will look for used tires first. That is my reasoning! Thanks again!

 

D

Dieseltech

Well-known Member

Location

Akron, Indiana

• Sep 22, 2019

• #1

Your 16.9X38 should be on 15 inch rims, 18.4X38 SHOULD be on 16 inch rims. I wouldn't be afraid of using 18.4 on the rims you have. I had some on a 14 inch wide rims awhile back, not right but it worked OK.

 

S

shinnery

Well-known Member

• Sep 22, 2019

• #1

I needed tires to get a tractor mobile and went from 15.5x38s to 16.9x38s with no problems. Never measured how wide the wheels were, it worked fine.

 

Destroked 450

Well-known Member

Location

Harned, Ky

• Sep 23, 2019

• #1

Most of the 7600's in this area where equipped with 18.4-34's

Recommended rim width for a 18.4-38 is 16" but you can mount one on a 15" rim, 16.9-38's normally come on a 14" rim and that's a little narrow for a 18.4, it'll fit but it'll look like a donut.
Keep in mind that a 18.4-38 is also 3" taller than a 16.9-38.

16.9-38 is not a popular tire size and finding used is near impossible, I'm in the same boat needing a set of 16.9-38's for one tractor, new bias are around $675 each unmounted but this tractor will see a good bit of road miles traveling between farms so I'll probably spend the extra coin and go with radials.

 

Destroked 450

Well-known Member

Location

Harned, Ky

• Sep 23, 2019

• #1

Set of used 16.9-38's in Peidmont S.C. on Letgo
Don't know how for that is from your Ga location.