15X8 back spacing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stepside454 · 03-11-2006, 01:34 PM

Ive got 15X8 & 15X7 truck rally wheels. does anyone know the backspacing on these wheels. Id check myself, but its @ the body shop & well, Ive got a wild hair to order new wheels

stepside454 · 03-11-2006, 02:33 PM

Im thinking about 285/70/15s on the rear, so I need to make sure the backspacing is the same. id consider 15X10s also if I know what backspacing will fit. John

Grande Rojo · 03-11-2006, 02:45 PM

a 285/70/15 will fit on your stepside with a factory 15x8 rally wheel

stepside454 · 03-11-2006, 02:48 PM

Grande, sweet, I was sure they would...but do you know what the backspacing on the stock 15X8s . I plan to buy new wheels. where in MO are you BTW

Tx Firefighter · 03-11-2006, 02:50 PM

I've measured them to be 4.25 inches backspacing.

That's tape measure from the back of the flange to the edge of the rim on the inside.

stepside454 · 03-11-2006, 02:54 PM

TX Ok so 4.0" back spacing is what I thought...just wanted to be sure. I probably outa wait till monday, pull a wheel off & measure myself, but I got a hair to order em now

SCOTI · 03-11-2006, 04:28 PM

15x8" ralleys are 4" bs (4.25~4.5 counting the lip & depending on how you measure).

You could go 15x9 w/a 4" or 15x10" w/a 5" bs using that 285/70. I would go 10's personally. I have 10's on the rear of mine w/5" bs & @ least 7" of drop.

stepside454 · 03-11-2006, 04:36 PM

Scoti, you have some pics Icould see of yours with 10 wide . Now mine is a stepside, dont know if that matters. John

Grande Rojo · 03-11-2006, 06:31 PM

Quote:

Originally Posted by stepside454

Grande, sweet, I was sure they would...but do you know what the backspacing on the stock 15X8s . I plan to buy new wheels. where in MO are you BTW

i'm in the Springfiled area.
btw 12" wide will fit with a "little" trimming

03-11-2006, 01:34 PM	#1
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	15X8 back spacing Ive got 15X8 & 15X7 truck rally wheels. does anyone know the backspacing on these wheels. Id check myself, but its @ the body shop & well, Ive got a wild hair to order new wheels Attached Images __________________ 75 GMC C-15 short/step factory 454, lowered

03-11-2006, 02:33 PM	#2
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Re: 15X8 back spacing Im thinking about 285/70/15s on the rear, so I need to make sure the backspacing is the same. id consider 15X10s also if I know what backspacing will fit. John Attached Images __________________ 75 GMC C-15 short/step factory 454, lowered Last edited by stepside454; 03-11-2006 at 02:33 PM.

03-11-2006, 02:45 PM	#3
Grande Rojo paper or plastic? Join Date: Nov 2002 Location: SW Missouri Posts: 671	Re: 15X8 back spacing a 285/70/15 will fit on your stepside with a factory 15x8 rally wheel Attached Images __________________ 1967 Chevy SWB 250 http://67-72chevytrucks.com/vboard/s...d.php?t=442157 1977 Chevy SWB 454 No More 454 getting 5.3 http://67-72chevytrucks.com/vboard/s...d.php?t=310518 1977 Stepside Truck of the month winner http://67-72chevytrucks.com/vboard/s...d.php?t=135524 1965 Chevy C10 454 http://67-72chevytrucks.com/vboard/s...d.php?t=731372 1975 Dodge Power Wagon http://67-72chevytrucks.com/vboard/s...=1#post7871388

03-11-2006, 02:48 PM	#4
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Re: 15X8 back spacing Grande, sweet, I was sure they would...but do you know what the backspacing on the stock 15X8s . I plan to buy new wheels. where in MO are you BTW __________________ 75 GMC C-15 short/step factory 454, lowered

03-11-2006, 02:50 PM	#5
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 15X8 back spacing I've measured them to be 4.25 inches backspacing. That's tape measure from the back of the flange to the edge of the rim on the inside. __________________ I'm on the Instagram- @Gearhead_Kevin

03-11-2006, 02:54 PM	#6
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Re: 15X8 back spacing TX Ok so 4.0" back spacing is what I thought...just wanted to be sure. I probably outa wait till monday, pull a wheel off & measure myself, but I got a hair to order em now __________________ 75 GMC C-15 short/step factory 454, lowered

03-11-2006, 04:28 PM	#7
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Re: 15X8 back spacing 15x8" ralleys are 4" bs (4.25~4.5 counting the lip & depending on how you measure). You could go 15x9 w/a 4" or 15x10" w/a 5" bs using that 285/70. I would go 10's personally. I have 10's on the rear of mine w/5" bs & @ least 7" of drop. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.* Last edited by SCOTI; 03-11-2006 at 04:30 PM.

03-11-2006, 04:36 PM	#8
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Re: 15X8 back spacing Scoti, you have some pics Icould see of yours with 10 wide . Now mine is a stepside, dont know if that matters. John __________________ 75 GMC C-15 short/step factory 454, lowered

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.