Widest Tires on a '71? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Colexv · 12-27-2013, 07:36 PM

hello, i've got a 1971 c10 fleet side long bed and i'm wondering what would be the widest set of tires i could put on it without shortening the axle. Also, I am planning tubbing it. what offset and back spacing would i need so the tires would not protrude the fender well? any feedback at all would be great!

**DreamRyder1963** · 12-27-2013, 08:31 PM

The real question how much are you going to tub the fenders.

Colexv · 12-27-2013, 10:02 PM

i was first going to see how wide i could go for tires before i tubbed it.

71 super · 12-27-2013, 11:36 PM

295-50 is getting close to the limit

RaceAGMC · 12-28-2013, 02:04 AM

I'm running a 295/40-20 I think I could prob run a 305 if I massaged the inside of the fender well a lil bit. But with no mods I think a 295 is it. But it depends on how low you are as well. I'm dropped 7" in the rear.

Colexv · 12-28-2013, 09:41 AM

i was looking at a 2 in drop in the rear. i want to put mt 29x15.5x15 sportsman pros on to fill out the wheel well. im thinking of adding 4in to the fender well or should i just a tub kit off of jegs? would a 7 1/2 backspace work with that?

ekgguy · 12-28-2013, 09:58 PM

I have mine tubbed all the way to the frame and I have test fit a 31x18.5-15 in the opening but have not driven it with them on. I am having a set of steel wheels widened with custom backspacing. The guy that is building my wheels for me swears they will fit and not hit the springs.

Mine is still stock ride height for now.

just my $0.02

Colexv · 12-29-2013, 02:10 PM

Quote:

Originally Posted by ekgguy

I have mine tubbed all the way to the frame and I have test fit a 31x18.5-15 in the opening but have not driven it with them on. I am having a set of steel wheels widened with custom backspacing. The guy that is building my wheels for me swears they will fit and not hit the springs.

Mine is still stock ride height for now.

just my $0.02

how wide of rims and how much back spacing on them?

ekgguy · 01-04-2014, 08:09 PM

Sorry, I missed the question.

We took a stock 6 lug rim and it is being widened to 17 inches. It will have 9.25 inches of back spacing. I am currently looking for '68 hubcaps which is why I kept the stock rim, plus steel wheels look better.

I didn't want to narrow my rear end or frame rails either. The deep dish look is not something I need, just enough tire to fill up the fender wells.

12-27-2013, 07:36 PM	#1
Colexv Registered User Join Date: Dec 2013 Location: bridgewater, ct Posts: 8	Widest Tires on a '71? hello, i've got a 1971 c10 fleet side long bed and i'm wondering what would be the widest set of tires i could put on it without shortening the axle. Also, I am planning tubbing it. what offset and back spacing would i need so the tires would not protrude the fender well? any feedback at all would be great!

12-27-2013, 08:31 PM	#2
DreamRyder1963 Senior Member Join Date: Jul 2012 Location: Knoxville, TN Posts: 499	Re: Widest Tires on a '71? The real question how much are you going to tub the fenders. __________________ 1971 Chevy C10 Cheyenne (sold for Mazda) 1963 Chevy Corvair Pro-Touring Project 2012 Mazda 3 i Sport sedan http://www.dracoautodesigns.com/

12-27-2013, 10:02 PM	#3
Colexv Registered User Join Date: Dec 2013 Location: bridgewater, ct Posts: 8	Re: Widest Tires on a '71? i was first going to see how wide i could go for tires before i tubbed it.

12-27-2013, 11:36 PM	#4
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,079	Re: Widest Tires on a '71? 295-50 is getting close to the limit __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

12-28-2013, 02:04 AM	#5
RaceAGMC Registered User Join Date: Jul 2007 Location: Charlotte, NC Posts: 350	Re: Widest Tires on a '71? I'm running a 295/40-20 I think I could prob run a 305 if I massaged the inside of the fender well a lil bit. But with no mods I think a 295 is it. But it depends on how low you are as well. I'm dropped 7" in the rear. __________________ 70 CST, 6.0/ 4L80E in the works. Custom harness by 68 Short Step

12-28-2013, 09:41 AM	#6
Colexv Registered User Join Date: Dec 2013 Location: bridgewater, ct Posts: 8	Re: Widest Tires on a '71? i was looking at a 2 in drop in the rear. i want to put mt 29x15.5x15 sportsman pros on to fill out the wheel well. im thinking of adding 4in to the fender well or should i just a tub kit off of jegs? would a 7 1/2 backspace work with that?

12-28-2013, 09:58 PM	#7
ekgguy Registered User Join Date: Jan 2012 Location: Humble, Texas Posts: 414	Re: Widest Tires on a '71? I have mine tubbed all the way to the frame and I have test fit a 31x18.5-15 in the opening but have not driven it with them on. I am having a set of steel wheels widened with custom backspacing. The guy that is building my wheels for me swears they will fit and not hit the springs. Mine is still stock ride height for now. just my $0.02 __________________ Matt Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=672655 "Father thank you for the gathering of friends, Father we give thanks for all the choices we've made because that's what makes us who we are, let us forever cherish the loved ones we've lost along the way and most of all *THANK YOU FOR FAST CARS!"*

01-04-2014, 08:09 PM	#9
ekgguy Registered User Join Date: Jan 2012 Location: Humble, Texas Posts: 414	Re: Widest Tires on a '71? Sorry, I missed the question. We took a stock 6 lug rim and it is being widened to 17 inches. It will have 9.25 inches of back spacing. I am currently looking for '68 hubcaps which is why I kept the stock rim, plus steel wheels look better. I didn't want to narrow my rear end or frame rails either. The deep dish look is not something I need, just enough tire to fill up the fender wells. __________________ Matt Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=672655 "Father thank you for the gathering of friends, Father we give thanks for all the choices we've made because that's what makes us who we are, let us forever cherish the loved ones we've lost along the way and most of all *THANK YOU FOR FAST CARS!"*



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