Can 31x10.50's fit on 15x7 rims?

Sabreman · 06-21-2005, 11:42 AM

My '89 Islander should arrive Thursday and I know it's going to need tires. I have the stock steel rims that I think are 15x7. The guy at the tire store said 31x10.50 size tires need a 15x8 rim or the middle of the new tire will wear faster than the rest. Anyone have any comments or experience with this? Thanks.

Where can you get a set of cheap steel rims?

ecvjohn · 06-21-2005, 11:45 AM

You can do it but the tire store is correct. The tire will balloon out and wear the center, you can play with the air pressure to compensate a bit at the cost of MPG.

cueball · 06-21-2005, 11:47 AM

i havent had a problem with mine and i have 32.5 x 11.5 on 7" rims.. at about 30 psi.. my tires are wearing evenly..

i didnt go with a 15x8 because i didnt want to have to buy new rims and fender flares (due to the backspacing.

otisdog · 06-21-2005, 11:57 AM

I run 33x10.50's on my stock 7" steel wheels. Run them at 30 psi and have no problems. Got about 16k on them. This is on a TJ though.
Jim

Prospect62 · 06-21-2005, 01:34 PM

Same here - have 31x10.50 mud tires on the factory 15x7 rims with no problems in that regard. Some rubbing, but no wear problems to speak of.

RealJeep · 06-21-2005, 03:15 PM

exactly you wil have no problem whatsoever

ufatbastehd · 06-21-2005, 04:38 PM

Quote:

Originally Posted by RealJeep

exactly you wil have no problem whatsoever

I just got some 31x10.5's and had them installed an my 15x7 rim. no probs yet.

I was informed by "those in the know" on another forum that this would not be a prob.

Sabreman · 06-21-2005, 09:15 PM

Thanks everyone. Glad to hear that my stock rims will work. More $$ to put towards a lift.

mYJ · 06-21-2005, 09:26 PM

After you get them mounted just to the chalk test on 'em (where you put a thick line across the tread and roll 'em over asphalt a couple of times to see where you are riding on your tires) to find the right air pressure and you'll be fine.

06-21-2005, 11:45 AM	#2
ecvjohn Registered User Join Date: Jun 2005 Location: Elk Grove,CA Posts: 53 Profile Gallery Classifieds My Jeeps	You can do it but the tire store is correct. The tire will balloon out and wear the center, you can play with the air pressure to compensate a bit at the cost of MPG. __________________ 95 Wrangler- Stock for now 99 Ram quad cab

06-21-2005, 11:47 AM	#3
cueball Registered User Join Date: Sep 2004 Location: coatesville, PA Posts: 776 Profile Gallery Classifieds My Jeeps	i havent had a problem with mine and i have 32.5 x 11.5 on 7" rims.. at about 30 psi.. my tires are wearing evenly.. i didnt go with a 15x8 because i didnt want to have to buy new rims and fender flares (due to the backspacing. __________________ Bye to the old - 1988 6 cyl 5 speed with a 94 rollbar, tomken 2x4 rocker skids and homebrewed OBA. Hello to the New - 1999 TJ Sport 4.0L auto.. stock for now

06-21-2005, 01:34 PM	#5
Prospect62 Junior Member Join Date: Apr 2004 Location: Upstate, NY Posts: 83 Profile Gallery Classifieds My Jeeps	15x7 Same here - have 31x10.50 mud tires on the factory 15x7 rims with no problems in that regard. Some rubbing, but no wear problems to speak of.

06-21-2005, 03:15 PM	#6
RealJeep Registered User Join Date: May 2005 Location: Virginia Posts: 242 Profile Gallery Classifieds My Jeeps	exactly you wil have no problem whatsoever __________________ 1992 Wrangler Sahara, 4.0L HO, Dynomax exhaust, Kc daylighters, 4" pro comp suspension lift, 33x12.50 BFG MT's, 15x10 rockcrawlers, hurst shifter, Off-road bumpers, SYE, 2-10's, MM 8000 Winch, ARB Snorkel, MORE Boomerangs, CB

06-21-2005, 09:26 PM	#9
mYJ Registered User Join Date: Sep 2004 Location: Eldora Colorado Posts: 635 Profile Gallery Classifieds My Jeeps	After you get them mounted just to the chalk test on 'em (where you put a thick line across the tread and roll 'em over asphalt a couple of times to see where you are riding on your tires) to find the right air pressure and you'll be fine. __________________ -Jeffrey- [SIZE=1]92 YJ 2.5, OME, Flat Fendered, 31" Big O XTs, Crager Soft 8s, Posi-Lok, no sway/track bars, Exide Orbital, K&N, 4.0 TB & TBS, Mopar Performance Cam, Glass pack & Hi-Flow cat, Grant GT Removable Wheel, Tuffy Console, Other Stuff.[/SIZE] [FONT=Impact][SIZE=2]Black JeepClub V2.0 #33[/SIZE] [/FONT][FONT=Tahoma] - Me & Roy[/FONT]