Got a 72 GMC and need to know what back spacing I need to put 10'in welds on the ass - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SS72GMC · 05-05-2003, 10:45 PM

Hey guys, I need to know what back spacing I need on my truck
ofr 10'in welds on the back and the 3-4'in on the front runners.
I have a 4-6 drop.Also what size slicks do I need for the rims?

Thanx

SS72GMC

gr8scott51 · 05-05-2003, 11:21 PM

Assuming you don't have tubs, 4" to 4-1/2" backspacing is standard. Good luck, Scott

SS72GMC · 05-05-2003, 11:24 PM

Thanx man but what size tire shouldI run?

SS72GMC

SEVEND2 · 05-06-2003, 12:54 AM

I run a 265/60 15 in the front on a 7 1/2 rims
and

295/50 15 in the rear. on a 8 1/2" rims

I am close to rubbing on the rear. but i am about 2" above the tire on the lowering, with out a load in bed

O'skool 72GMC · 05-08-2003, 01:54 PM

When i did it for my dropped 56 f#$d i just measured the space with a tape measure and then subtracted an 1" to figure the tire size and for the rim backspacing i measured from where the backplate and wheel studs meet. They didn't make the steel wheels with the required back spacing so i got the max they would do and got a 1/2" wheel spacer and they fit perfect and looked badass.
Good luck

SS72GMC · 05-08-2003, 08:39 PM

Thanx man !!!

SS72GMC

SEVEND2 · 05-09-2003, 04:45 PM

on a 10" wide rim u can put a 295/50/? on it

Most likely your loacal tire dealer should know or contact weld via there web site

lukecp · 05-09-2003, 09:42 PM

295/50-15 tires fit a 15x10 rim great. The rim and the tire look really well matched, and pretty bad a$$ too. However, 50-series tires ride like crap, and everyone i know that has them have problems with them wearing out. I am hoping to go with a 15x10 wheel and a 275/60-15 tire on them, i think it should look pretty good with the 15x8 rim and 255/60-15 tires i have on the front now.

SEVEND2 · 05-10-2003, 03:06 PM

275 are a tight stretch on a 10" rim, might roll off rim on a dounut spin!!! I used Remington tires 295/50/15 on mine, ride seems fine, I also have them on my 81, and it holds up great. I tried GF G's and Good years. They did not hold up that well, and where more expencive (remingtons where about $100. each and the others about hmmm $130 each)

05-05-2003, 10:45 PM	#1
SS72GMC Registered User Join Date: Mar 2003 Location: TEXAS Posts: 10	Got a 72 GMC and need to know what back spacing I need to put 10'in welds on the ass Hey guys, I need to know what back spacing I need on my truck ofr 10'in welds on the back and the 3-4'in on the front runners. I have a 4-6 drop.Also what size slicks do I need for the rims? Thanx SS72GMC __________________ 1972 GMC SC/LB 350/TH350 4/6 Drop http://www.dfwstangs.net/hosting/SS7...ustins_sig.jpg

05-05-2003, 11:21 PM	#2
gr8scott51 Registered User Join Date: Mar 2003 Location: Bremerton, WA Posts: 1,839	Assuming you don't have tubs, 4" to 4-1/2" backspacing is standard. Good luck, Scott __________________ Silence is golden, duct tape is silver. - Scott

05-05-2003, 11:24 PM	#3
SS72GMC Registered User Join Date: Mar 2003 Location: TEXAS Posts: 10	Thanx man but what size tire shouldI run? SS72GMC __________________ 1972 GMC SC/LB 350/TH350 4/6 Drop http://www.dfwstangs.net/hosting/SS7...ustins_sig.jpg

05-06-2003, 12:54 AM	#4
SEVEND2 Registered User Join Date: Aug 2001 Location: Menifee, Calif, USA Posts: 2,145	I run a 265/60 15 in the front on a 7 1/2 rims and 295/50 15 in the rear. on a 8 1/2" rims I am close to rubbing on the rear. but i am about 2" above the tire on the lowering, with out a load in bed __________________ With a 1972 Chevy Custom-10 Long bed w/350cid th350, (under-construction). Progress on truck so far (follow link): http://67-72chevytrucks.com/vboard/s...ad.php?t=51051 and stage 2 http://67-72chevytrucks.com/vboard/s...ad.php?t=58132 ~ "Why couldn't you have just put the bunny back in the box?" ~

05-08-2003, 01:54 PM	#5
O'skool 72GMC Registered User Join Date: Jan 2002 Location: San Diego, CA, USA Posts: 251	tire and rim size When i did it for my dropped 56 f#$d i just measured the space with a tape measure and then subtracted an 1" to figure the tire size and for the rim backspacing i measured from where the backplate and wheel studs meet. They didn't make the steel wheels with the required back spacing so i got the max they would do and got a 1/2" wheel spacer and they fit perfect and looked badass. Good luck

05-08-2003, 08:39 PM	#6
SS72GMC Registered User Join Date: Mar 2003 Location: TEXAS Posts: 10	Thanx man !!! SS72GMC __________________ 1972 GMC SC/LB 350/TH350 4/6 Drop http://www.dfwstangs.net/hosting/SS7...ustins_sig.jpg

05-09-2003, 04:45 PM	#7
SEVEND2 Registered User Join Date: Aug 2001 Location: Menifee, Calif, USA Posts: 2,145	on a 10" wide rim u can put a 295/50/? on it Most likely your loacal tire dealer should know or contact weld via there web site __________________ With a 1972 Chevy Custom-10 Long bed w/350cid th350, (under-construction). Progress on truck so far (follow link): http://67-72chevytrucks.com/vboard/s...ad.php?t=51051 and stage 2 http://67-72chevytrucks.com/vboard/s...ad.php?t=58132 ~ "Why couldn't you have just put the bunny back in the box?" ~

05-09-2003, 09:42 PM	#8
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	295/50-15 tires fit a 15x10 rim great. The rim and the tire look really well matched, and pretty bad a$$ too. However, 50-series tires ride like crap, and everyone i know that has them have problems with them wearing out. I am hoping to go with a 15x10 wheel and a 275/60-15 tire on them, i think it should look pretty good with the 15x8 rim and 255/60-15 tires i have on the front now. __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

05-10-2003, 03:06 PM	#9
SEVEND2 Registered User Join Date: Aug 2001 Location: Menifee, Calif, USA Posts: 2,145	275 are a tight stretch on a 10" rim, might roll off rim on a dounut spin!!! I used Remington tires 295/50/15 on mine, ride seems fine, I also have them on my 81, and it holds up great. I tried GF G's and Good years. They did not hold up that well, and where more expencive (remingtons where about $100. each and the others about hmmm $130 each) __________________ With a 1972 Chevy Custom-10 Long bed w/350cid th350, (under-construction). Progress on truck so far (follow link): http://67-72chevytrucks.com/vboard/s...ad.php?t=51051 and stage 2 http://67-72chevytrucks.com/vboard/s...ad.php?t=58132 ~ "Why couldn't you have just put the bunny back in the box?" ~



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