What is the widest tire on stock rims? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71400lb · 01-05-2006, 11:27 AM

I was wondering what is the widest tire I can put on my stock rims(not sure of the stock rim size, besides being 16's).

I have 215/85/16's on there now, but they just look WAY too skinny for the truck.

Thanks
71400lb
1971 Chevy Cheyenne C/20, Long Bed 2wd
400 SBC 4 bbl/400 Turbo
3.73/HO52/Open
Dual Exhaust

farside847 · 01-05-2006, 12:57 PM

I didnt think 16 was a stock rim, but i could be wrong. Mine are 15's

shelby987 · 01-05-2006, 01:25 PM

ummm....not to nit pick...but if its stock, shouldn't the rear be a 14bolt??? I was pretty sure 70 was the last year for the eaton....and 4.10's were the highest gears you could get???

71400lb · 01-05-2006, 01:48 PM

Hmmm, well I could be learning something new myself. I bought the truck about 1.5 years ago and the guy told me it was pretty much all original except for the 400 SBC and the 400 Turbo. I could have been mislead however, and he switched out the rear.

But he told me it was a factory 3.73 non-posi, 10-bolt Eaton HO52...and the wheels are definitely 16" with 8-lugs.

Now I'm confused!

1971LT1SWBPOSI373 · 01-05-2006, 02:26 PM

That sounds right. You've got a 3/4 ton truck. I can't help with the tire size though. I bet ya a cold beer that info is in the restoration packet, the owners manual, and possibly the gm assembly manual. I just got my resto packet, lots of info in there...

dyingdeadman · 01-06-2006, 06:04 AM

as far as the widest i am not sure. i think i am running 235/70/16's on mine they seem to fit pretty good.

**Palf70Step** · 01-06-2006, 07:35 AM

If they are the 6" rims, the biggest recommended would be a 255/70x16. I'm not real familiar with the 3/4 tns as much. If they have a 7 or 8 " rim you could easily get a 285/70x16 on a 7". With 8" I think your limit will be tire clearance, not the rim width.

01-05-2006, 11:27 AM	#1
71400lb 71400lb Join Date: Jun 2004 Location: Charlotte NC Posts: 74	What is the widest tire on stock rims? I was wondering what is the widest tire I can put on my stock rims(not sure of the stock rim size, besides being 16's). I have 215/85/16's on there now, but they just look WAY too skinny for the truck. Thanks 71400lb 1971 Chevy Cheyenne C/20, Long Bed 2wd 400 SBC 4 bbl/400 Turbo 3.73/HO52/Open Dual Exhaust

01-05-2006, 12:57 PM	#2
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Re: What is the widest tire on stock rims? I didnt think 16 was a stock rim, but i could be wrong. Mine are 15's __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

01-05-2006, 01:25 PM	#3
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	Re: What is the widest tire on stock rims? ummm....not to nit pick...but if its stock, shouldn't the rear be a 14bolt??? I was pretty sure 70 was the last year for the eaton....and 4.10's were the highest gears you could get??? __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

01-05-2006, 01:48 PM	#4
71400lb 71400lb Join Date: Jun 2004 Location: Charlotte NC Posts: 74	Re: What is the widest tire on stock rims? Hmmm, well I could be learning something new myself. I bought the truck about 1.5 years ago and the guy told me it was pretty much all original except for the 400 SBC and the 400 Turbo. I could have been mislead however, and he switched out the rear. But he told me it was a factory 3.73 non-posi, 10-bolt Eaton HO52...and the wheels are definitely 16" with 8-lugs. Now I'm confused! Last edited by 71400lb; 01-05-2006 at 01:50 PM.

01-05-2006, 02:26 PM	#5
1971LT1SWBPOSI373 Registered User Join Date: Mar 2002 Location: Springfield, VA Posts: 460	Re: What is the widest tire on stock rims? That sounds right. You've got a 3/4 ton truck. I can't help with the tire size though. I bet ya a cold beer that info is in the restoration packet, the owners manual, and possibly the gm assembly manual. I just got my resto packet, lots of info in there... __________________ 1971 Shortbed 350/350 w/ Posi-traction 3:73's 1996 Chevy Silverado TJ in Springfield, Virginia Likes old Chevy trucks Drinks Miller MGD

01-06-2006, 06:04 AM	#6
dyingdeadman Registered User Join Date: Aug 2004 Location: san marcos,tx Posts: 266	Re: What is the widest tire on stock rims? as far as the widest i am not sure. i think i am running 235/70/16's on mine they seem to fit pretty good. __________________ 72 GMC sierra 3/4 ton 402 bb 68 GMC 3/4 ton 2010 camaro rs: daily driver

01-06-2006, 07:35 AM	#7
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,269	Re: What is the widest tire on stock rims? If they are the 6" rims, the biggest recommended would be a 255/70x16. I'm not real familiar with the 3/4 tns as much. If they have a 7 or 8 " rim you could easily get a 285/70x16 on a 7". With 8" I think your limit will be tire clearance, not the rim width. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



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