Tire/wheel questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

thirdstreettito · 01-10-2009, 02:42 AM

I have a 68' LWB. What is the widest rear tire/wheel that I can run? Biggest backspace? Also, what is the widest tire that will fit on the stock 15"?

dan42 · 01-10-2009, 02:54 AM

If you don't tub it, probably 10'' or at the most 12" - I'm not sure about the rim question, but the back spacing is around 4.5", I believe. There have been a couple of threads on it.

thirdstreettito · 01-10-2009, 02:59 AM

I have seen the threads, but don't remember the answers. And the search here doesnt seem to find what I look for.

*project 67 sub* · 01-10-2009, 03:57 AM

i used to have 295/50r 15's(12" wide treaded area) on an 8 1/2" wide steel wheel on the back of my burb, dont remember the backspacing but it had a decent lip
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thirdstreettito · 01-10-2009, 12:19 PM

Quote:

Originally Posted by project 67 sub

i used to have 295/50r 15's(12" wide treaded area) on an 8 1/2" wide steel wheel on the back of my burb, dont remember the backspacing but it had a decent lip
Attachment 419607

Hot burb. Only thing is, my 68 of course has the narrow rear end...

*project 67 sub* · 01-10-2009, 02:14 PM

that was a 67-8 rearend in the pic. it now has a 71-2 rear with 20's

thirdstreettito · 01-10-2009, 02:30 PM

OK, well then, Thanks!

heavy70 · 01-10-2009, 06:25 PM

Heres what i did just cut 3 inches in to the frame and had an extra set of factory wheel wells and butt welded them together
i running a 15x12 weld rodlite with a 7.5 backspace with a m/t 29x15.5 sportsman tire....

thirdstreettito · 01-10-2009, 07:18 PM

I wont tub, I want to be able to haul plywood.

*project 67 sub* · 01-11-2009, 01:59 AM

no problem

01-10-2009, 02:42 AM	#1
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Tire/wheel questions I have a 68' LWB. What is the widest rear tire/wheel that I can run? Biggest backspace? Also, what is the widest tire that will fit on the stock 15"? __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

01-10-2009, 02:54 AM	#2
dan42 Registered User Join Date: Feb 2007 Location: Cali Central Coast Posts: 5,191	Re: Tire/wheel questions If you don't tub it, probably 10'' or at the most 12" - I'm not sure about the rim question, but the back spacing is around 4.5", I believe. There have been a couple of threads on it. __________________ '67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD Click here to support the board Philippians 4: 6-7

01-10-2009, 02:59 AM	#3
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: Tire/wheel questions I have seen the threads, but don't remember the answers. And the search here doesnt seem to find what I look for. __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

01-10-2009, 03:57 AM	#4
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Tire/wheel questions i used to have 295/50r 15's(12" wide treaded area) on an 8 1/2" wide steel wheel on the back of my burb, dont remember the backspacing but it had a decent lip Last edited by project 67 sub; 01-10-2009 at 04:02 AM.

01-10-2009, 02:14 PM	#6
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Tire/wheel questions that was a 67-8 rearend in the pic. it now has a 71-2 rear with 20's

01-10-2009, 02:30 PM	#7
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: Tire/wheel questions OK, well then, Thanks! __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

01-10-2009, 06:25 PM	#8
heavy70 Registered User Join Date: Dec 2007 Location: choctaw, oklahoma Posts: 100	Re: Tire/wheel questions Heres what i did just cut 3 inches in to the frame and had an extra set of factory wheel wells and butt welded them together i running a 15x12 weld rodlite with a 7.5 backspace with a m/t 29x15.5 sportsman tire.... Last edited by heavy70; 01-10-2009 at 06:29 PM.

01-10-2009, 07:18 PM	#9
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: Tire/wheel questions I wont tub, I want to be able to haul plywood. __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

01-11-2009, 01:59 AM	#10
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Tire/wheel questions no problem



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