A few questions if anyone knows... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

moggey01 · 03-12-2012, 03:43 AM

There are people with wide (16 ") slicks with a stock frame. How wide is the housing (should be shorter than a 67 I guess) and what backspace wheel are people using? I want the option of going with a bigger tire if I need it some day. Also I need to by some sheet metal patch panels , floor , bed side. Who has the best fitting parts? I will try to find good used GM stuff but if I cant I am pretty picky about fit on stuff so I want opinions from people that have been there and done it.
Thanks
Mark

**PGSigns** · 03-12-2012, 08:23 AM

The rear end width and wheel size wiil depend on the spacing needed to get the tire under the truck. The way we did it when building a drag car was to place the tire and wheel under the car and check the fit. Then we would measure the width between the wheels to fab the rear housing. Not sure what year truck you have so the fit of a slick that big I can't help you with. I know on my 65 you could not get a tire that big under it with out frame work. As far as body panels depends what you need as far as who has the best stuff.
Jimmy

moggey01 · 03-12-2012, 10:20 AM

Its a 69 frame, body. I want to use 67-68 front sheet metal. Mainly I need a right side bed panel and a right front fender. The door bottoms are rusted, floor and cab corners as always. I here you on fitting the wheel tire ,that it what I will do, I just have smaller tires so I wanted to see how differant it was with a real wide tire.

bigboybodry · 03-12-2012, 12:20 PM

My 1970 gmc truck has a stock length rear housing and I am running a 16" wide wheel. I just ordered a custom set from holeshot wheels. The tire I run at the track is a 31 10.5w15 and street is a 33 18.5 sportsman.

GMR-PERFORMANCE · 03-12-2012, 07:42 PM

I used a company to get a 11 inch rim under mine stock. It's all about the back spacing. Measure from the drum to the outer fender lip, another from the inside of the wheel well to the face of the drum.

You want a min of 1/2 inch from either edge. Trucks are very easy to gain room in the box. there is alimit to the amount of offset you can have. What that limit is I do not know. But I am sure a rim company can tell you.

fastwillie 696969 · 03-12-2012, 09:58 PM

mine,they narrowed the back end frame by 3 inches ,and narrowed the rear end

03-12-2012, 03:43 AM	#1
moggey01 Registered User Join Date: Apr 2011 Location: Houston Texas Posts: 315	A few questions if anyone knows... There are people with wide (16 ") slicks with a stock frame. How wide is the housing (should be shorter than a 67 I guess) and what backspace wheel are people using? I want the option of going with a bigger tire if I need it some day. Also I need to by some sheet metal patch panels , floor , bed side. Who has the best fitting parts? I will try to find good used GM stuff but if I cant I am pretty picky about fit on stuff so I want opinions from people that have been there and done it. Thanks Mark

03-12-2012, 08:23 AM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: A few questions if anyone knows... The rear end width and wheel size wiil depend on the spacing needed to get the tire under the truck. The way we did it when building a drag car was to place the tire and wheel under the car and check the fit. Then we would measure the width between the wheels to fab the rear housing. Not sure what year truck you have so the fit of a slick that big I can't help you with. I know on my 65 you could not get a tire that big under it with out frame work. As far as body panels depends what you need as far as who has the best stuff. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

03-12-2012, 10:20 AM	#3
moggey01 Registered User Join Date: Apr 2011 Location: Houston Texas Posts: 315	Re: A few questions if anyone knows... Its a 69 frame, body. I want to use 67-68 front sheet metal. Mainly I need a right side bed panel and a right front fender. The door bottoms are rusted, floor and cab corners as always. I here you on fitting the wheel tire ,that it what I will do, I just have smaller tires so I wanted to see how differant it was with a real wide tire.

03-12-2012, 12:20 PM	#4
bigboybodry Registered User Join Date: Jul 2009 Location: Florence,Mississippi Posts: 301	Re: A few questions if anyone knows... My 1970 gmc truck has a stock length rear housing and I am running a 16" wide wheel. I just ordered a custom set from holeshot wheels. The tire I run at the track is a 31 10.5w15 and street is a 33 18.5 sportsman. Attached Images __________________ first track pass with the new motor on motor http://youtu.be/YgrJaEF_TaQ

03-12-2012, 07:42 PM	#5
GMR-PERFORMANCE Registered User Join Date: Aug 2010 Location: Keller TX Posts: 836	Re: A few questions if anyone knows... I used a company to get a 11 inch rim under mine stock. It's all about the back spacing. Measure from the drum to the outer fender lip, another from the inside of the wheel well to the face of the drum. You want a min of 1/2 inch from either edge. Trucks are very easy to gain room in the box. there is alimit to the amount of offset you can have. What that limit is I do not know. But I am sure a rim company can tell you. __________________ 62 long box with a little SBC http://www.67-72chevytrucks.com/vboa...d.php?t=510631 http://good-times.webshots.com/album/561798652HdwqzG

03-12-2012, 09:58 PM	#6
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	Re: A few questions if anyone knows... mine,they narrowed the back end frame by 3 inches ,and narrowed the rear end Attached Images __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex



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