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what backspacing came with 8x15" steelies? #281367
04/08/09 12:01 PM
04/08/09 12:01 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline OP
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west  Offline OP
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I have 7x15's now and was wondering what the backspacing is on the 8" rims.
is there more than one type?
thanks.

Re: what backspacing came with 8x15" steelies? [Re: west] #281368
04/08/09 12:07 PM
04/08/09 12:07 PM
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Posts: 27,442
So Cal
autoxcuda Offline
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Quote:

I have 7x15's now and was wondering what the backspacing is on the 8" rims.
is there more than one type?
thanks.




4 1/2" for 15x8 mopar steelies (ramcharger/super coupe)

4 1/4 for 15x7 mopar steelies, rallyes....

Re: what backspacing came with 8x15" steelies? [Re: autoxcuda] #281369
04/08/09 12:20 PM
04/08/09 12:20 PM
Joined: Apr 2007
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petaluma,ca. u.s.a.
west Offline OP
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darn,i was hoping for more backspacing.
don't suppose mopar had some 9" rims that will fit under my dart huh?
my next option is to have some custom made

Re: what backspacing came with 8x15" steelies? [Re: west] #281370
04/08/09 02:58 PM
04/08/09 02:58 PM
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Florida
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scratchnfotraction Offline
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scratchnfotraction  Offline
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you will be pushing it with 8s on the Dart

may need the lip rolled or a massage to the inner wheel well...cut it back to the frame rail or mini tubb it

what rear axle you got?

my 68 dart needed 7" with 4 1/4 bs with the 74 7 1/4-4.5 wbp axle,could not get closer to the spring,had 1/8" clearance

needed 4 1/2" bs with 7" rims on the A-body 8 3/4 axle with moser axles and greens with the large B-body brakes,same thing here 1/8" clearance at the spring and tire bulge

it was centered in the wheel well good but could not get a wide rim or tire with out work on the lip and inside of the tire well

runing 12" rims with 4 1/2" bs now with 29x15.5x15 M/Ts on the A-body 8 3/4 and got a 1/8" clearance at the tire bulge and spring

not saying it cant be done and may vary car to car

its just what I got with mine

I think 4 1/2 bs is gonna be the ticket with what ever rim you run on the A-body with out moving the springs

good luck


Re: what backspacing came with 8x15" steelies? [Re: scratchnfotraction] #281371
04/08/09 03:06 PM
04/08/09 03:06 PM
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petaluma,ca. u.s.a.
west Offline OP
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springs are moved,there is room for a biiger rim i just need more backspacing cuz im at the lip if the wheel well as you said.
what about magnum 500's can i get those anywhere with custom b-spacing?

Re: what backspacing came with 8x15" steelies? [Re: west] #281372
04/08/09 03:58 PM
04/08/09 03:58 PM
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Florida
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scratchnfotraction Offline
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I have only had 14" mag 500 rims and the were 7" with 4 1/4 bs IIRC

if your spring is moved you should be able to use 5"-5.5" bs with an 8" rim maybe even get a 10" in there

just remember tire bulge and have clearance for it


Re: what backspacing came with 8x15" steelies? [Re: west] #281373
04/08/09 04:02 PM
04/08/09 04:02 PM
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Scottsdale, AZ
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kenz Offline
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Quote:

what about magnum 500's can i get those anywhere with custom b-spacing?




Yes!! Summit can order them. I'm getting a pair of 15 x 7's with 4 1/2 back spacing. It's only $20 extra per wheel and they said it'll take a couple of weeks.

Thanks,
Ken


Mopars Unlimited of Arizona
www.moparsaz.com
Re: what backspacing came with 8x15" steelies? [Re: kenz] #281374
04/08/09 04:22 PM
04/08/09 04:22 PM
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petaluma,ca. u.s.a.
west Offline OP
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Quote:

Quote:

what about magnum 500's can i get those anywhere with custom b-spacing?




Yes!! Summit can order them. I'm getting a pair of 15 x 7's with 4 1/2 back spacing. It's only $20 extra per wheel and they said it'll take a couple of weeks.

Thanks,
Ken



thanks ken,thats good news more cash than $40 steelies but I may go that route.
wondering what backspacing your rims come with normally?can't be much diiferent than what you ordered cuz i think i'll try to keep the same size rim up front as my 15x7 steelies.

Last edited by west; 04/08/09 04:25 PM.
Re: what backspacing came with 8x15" steelies? [Re: west] #281375
04/09/09 03:17 PM
04/09/09 03:17 PM
Joined: Jan 2003
Posts: 559
Scottsdale, AZ
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kenz Offline
mopar
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Scottsdale, AZ
The 15 x 7's normally come with 4 1/4" back spacing. I'm trying to keep the tires in as far as possible. I could actually go with 4 3/4 back spacing if I wanted to get real close (1/8") from the upper BJ. :-)

Good luck.
Ken


Mopars Unlimited of Arizona
www.moparsaz.com
Re: what backspacing came with 8x15" steelies? [Re: autoxcuda] #281376
04/12/09 11:58 AM
04/12/09 11:58 AM
Joined: Aug 2003
Posts: 1,014
Midwestern Indiana
duster2 Offline
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Midwestern Indiana
Every factory 15 x 8 steel or coupe wheel that I have come across have a 4 1/4 backspace.

Re: what backspacing came with 8x15" steelies? [Re: duster2] #281377
04/12/09 01:14 PM
04/12/09 01:14 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline OP
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west  Offline OP
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petaluma,ca. u.s.a.
autoxcuda says 8" steelies are 4 1/2" backspacing.
who's right?







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