Will These Tires Fit??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Zilverado* · 03-04-2007, 11:55 PM

So here's a question...

Is it possible to mount a 31x10.5 R15 tire onto the stock 15" rally wheel? If it is, I was thinking of replacing the BF Goodrich All-Terrain TA's on our Pathfinder (daily driver), and putting the used tires - still in pretty good shape - on the truck.

I'd love to have the look of the BFG's on the truck, even though it is only 2WD, but I can't justify spending the big bucks on the truck (a second vehicle) at this time. But putting new tires on the Pathfinder and "recycling" the others onto the truck is a possibility.

So, would these tires swap?

ElGracho · 03-05-2007, 12:39 AM

It depends. There are three different widths of 2wd rallies. 6", 7" or 8". The 6" wheels were mostly found on vans.

If I were going to run a 31x10.50, I'd want the 8" wide wheels.

*Zilverado* · 03-05-2007, 09:26 AM

Thanks for the reply. I'll have to take a closer look at the wheels I have. Is the size actually stamped on the rim somewhere, or do I need to measure it. And I assume the 8" is to the inside of the edges of the rim? Or is it simply the outside width?

Thanks again.

Prerunner1982 · 03-05-2007, 04:31 PM

I have always been told/gone by the 4" rule.. as long as the wheel is no more than 4" narrower than the wide of the tire you should be fine.

Example: 31x10.50x15 and a 15x7 wheel.. 7+4=11.00 so the 7" wheel is within 4" of the width of the tire (11.50) so it would work fine.

I have run 31x11.50x15s on a 15x7" wheel myself on my 82.. but upgraded to 32x11.50x15 on 15x8s.

Check the back side of the rim the size should be stamped there. You may have to clean it first to see it.

03-04-2007, 11:55 PM	#1
Zilverado Account Suspended Join Date: Nov 2002 Location: Winnipeg, Manitoba, Canada Posts: 798	Will These Tires Fit??? So here's a question... Is it possible to mount a 31x10.5 R15 tire onto the stock 15" rally wheel? If it is, I was thinking of replacing the BF Goodrich All-Terrain TA's on our Pathfinder (daily driver), and putting the used tires - still in pretty good shape - on the truck. I'd love to have the look of the BFG's on the truck, even though it is only 2WD, but I can't justify spending the big bucks on the truck (a second vehicle) at this time. But putting new tires on the Pathfinder and "recycling" the others onto the truck is a possibility. So, would these tires swap?

03-05-2007, 12:39 AM	#2
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Re: Will These Tires Fit??? It depends. There are three different widths of 2wd rallies. 6", 7" or 8". The 6" wheels were mostly found on vans. If I were going to run a 31x10.50, I'd want the 8" wide wheels. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

03-05-2007, 09:26 AM	#3
Zilverado Account Suspended Join Date: Nov 2002 Location: Winnipeg, Manitoba, Canada Posts: 798	Re: Will These Tires Fit??? Thanks for the reply. I'll have to take a closer look at the wheels I have. Is the size actually stamped on the rim somewhere, or do I need to measure it. And I assume the 8" is to the inside of the edges of the rim? Or is it simply the outside width? Thanks again.

03-05-2007, 04:31 PM	#4
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	Re: Will These Tires Fit??? I have always been told/gone by the 4" rule.. as long as the wheel is no more than 4" narrower than the wide of the tire you should be fine. Example: 31x10.50x15 and a 15x7 wheel.. 7+4=11.00 so the 7" wheel is within 4" of the width of the tire (11.50) so it would work fine. I have run 31x11.50x15s on a 15x7" wheel myself on my 82.. but upgraded to 32x11.50x15 on 15x8s. Check the back side of the rim the size should be stamped there. You may have to clean it first to see it. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call Last edited by Prerunner1982; 03-05-2007 at 04:31 PM.



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