33x12,5x17

Reply Subscribe

Thread Tools

Search this Thread

Dec 24, 2010 | 11:18 AM

preco

Thread Starter

New User

Joined: Aug 2010

Posts: 13

Likes: 0

33x12,5x17

hi any body know if i can fit 33x12,5x17 tires on my 17 inch rims and does it clear the chassis and body and finaly does it impact on my milage i dont know what gears i have i the differentials so it maby are to big and slugg acceleration if you have any suggestions please send a reply and regards from sweden and by the way i forgot its a 2005 super duty 6,0 with original wheels

Dec 24, 2010 | 12:23 PM

stuffdeer

Senior User

Joined: Nov 2010

Posts: 125

Likes: 0

I had a 2007 and put 35x13x20 on it and there was very little or no rubbing. Gas milage went down...

Dec 24, 2010 | 12:36 PM

Furian

You Keep What You Kill

Joined: Dec 2006

Posts: 4,902

Likes: 2

From: Huntersville, NC

Hi Peter,

I'm running 33X11.5R18 on my 2005 F350 with stock suspension with no issues at all. Assuming your truck has the coil spring front suspension, you will be fine with the 33X12.5R17 tires.

Is this your truck?

Dec 24, 2010 | 05:23 PM

redford

FTE Leadership Emeritus

Joined: Sep 2000

Posts: 23,174

Likes: 1,679

From: Stephensville WI

Quote:

Originally Posted by preco

hi any body know if i can fit 33x12,5x17 tires on my 17 inch rims

You may have problems finding a tire shop that will mount 33X12.5 on stock rims. 285 is generally the widest you want to prudently put on stock rims.

Quote:

Originally Posted by preco

and does it clear the chassis and body

Yes

Quote:

Originally Posted by preco

and finaly does it impact on my milage

Yes, your mileage will go down any time you run a wider tire and put your truck up higher.

Dec 24, 2010 | 06:07 PM

preco

Thread Starter

New User

Joined: Aug 2010

Posts: 13

Likes: 0

yes its my truck

Quote:

Originally Posted by Furian

it have coils in front + 2 more leafs in rear + firestone airide the reason why i ask is it seems to be impossible to get 31 inch tires for 17 inch rims so i guess it must be 285x70x17

Dec 24, 2010 | 06:25 PM

texastech_diesel

Token Redneck

Joined: Jun 2007

Posts: 9,339

Likes: 350

From: Breckenridge, TX

Quote:

Originally Posted by redford

You may have problems finding a tire shop that will mount 33X12.5 on stock rims. 285 is generally the widest you want to prudently put on stock rims.

I had a set of 12.5" tires on 9" rims and still had tread wear issues with the tires being too wide for air pressure to correct for. Now with 295s on 8" rims I run 55psi instead of the sidewall max of 80 and it's almost perfect out back. You'll kill a set of 50,000 mile tires in 20k flat because the center of the tire will wear to the bars before the outer lugs are half gone.

Quote:

Originally Posted by preco

it seems to be impossible to get 31 inch tires for 17 inch rims so i guess it must be 285x70x17

265/70/17s work out to 31.6x10.5. A 285/70/17 is 32.7x11.

Dec 24, 2010 | 06:40 PM

bayou barataria

Posting Guru

Joined: Jul 2007

Posts: 1,543

Likes: 0

If your tires are wearing more in the center they are probably overinflated.

Trending Topics

vintage pics of days gone by

17.8k

1.7M
Tire steel belt separation-second time it's happened to me

25

401
94 steering and alignment

17

249
'95 7.5L 3" exhaust pics before/after

15

252
Picture posting thread - post pictures of your trucks here, any truck

697

60.4k

Dec 24, 2010 | 10:02 PM

texastech_diesel

Token Redneck

Joined: Jun 2007

Posts: 9,339

Likes: 350

From: Breckenridge, TX

Quote:

Originally Posted by bayou barataria

If your tires are wearing more in the center they are probably overinflated.

Or they're E-rated tires running 35 PSI instead of 80 on wheels that are too narrow. No amount of air pressure adjustment can account for a rim that is narrower than the recommended range, the belts won't flex enough to flatten out the tread block unless you air down to a pressure that isn't safe to drive on. Drop an e-rated tire to 30PSI and feel how much delay there is in the steering, the sidewalls flex before the tread block moves, and the steering feels like mush.

I ran D-rated 35x12.50s on a 9" wide rim, aired down from 55 to 25 and they still weren't anywhere near flattened out. Not enough weight on the rear axle. The fronts had to go down to 35 before they were decent, and that's with the extra weight of the diesel pushing down on them. 10" rim would have been a lot better, a rim more than 3" different from the tire's section width will cause wear issues regardeless of air pressure. The OP wants to run a 12.5" wide tire on a 7.5" wide rim, ain't no way a 5" difference is going to work.