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Old Yesterday, 01:08 PM   #1
72malibu
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15x10 Rally Wheel - Fitment?

I want to put 15x10s on the rear of a 75 C10, no suspension mods.

What backspace should I be looking for, for the best look and fitment?

(I'm planning to use a pair of NOS 15x8s in the front, 4.5 backspace).
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Old Yesterday, 02:54 PM   #2
Wikid61
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Re: 15x10 Rally Wheel - Fitment?

Several sizes. You can bolt the stock 8" on the rear & measure how far inboard you can go, 2". Or go inboard 1" & outward 1 inch. Is 15x10 the only option? Going in 1.5 inch & out 1.5 for a 15x11.
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Old Yesterday, 07:27 PM   #3
Loco83
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Re: 15x10 Rally Wheel - Fitment?

I'm running 15x10 Rallys on the back of my 83 with a 5" BS and 295/50 TA's, no rubbing, also 15x8 on the front with 4" BS.
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Old Today, 11:04 AM   #4
72malibu
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Re: 15x10 Rally Wheel - Fitment?

Thanks. I think all the OEM 15x8 truck rally wheels were 4.5 backspace if I'm not mistaken. I'm just going to use a pair of those for the front, probably with 245/60 tires.

The 15x10 is obviously custom. I've seen used pairs with 4.5 backspace but I know that Wheel Vintiques used to sell them with 5 backspace too. I'm looking at a pair of used 15x10s this weekend and will check the backspacing on them. I think if they are either 4.5 or 5 backspace they should work, especially since this truck isn't lowered. Probably with 295/50 tires. That should result in the same sidewall height and bulge front and rear.
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Old Today, 12:50 PM   #5
Loco83
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Re: 15x10 Rally Wheel - Fitment?

Agree, I'm also running a 245/60 TA on the front.
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Old Today, 01:05 PM   #6
72malibu
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Re: 15x10 Rally Wheel - Fitment?

Quote:
Originally Posted by Loco83 View Post
Agree, I'm also running a 245/60 TA on the front.
Looks perfect!
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Old Today, 02:06 PM   #7
Loco83
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Re: 15x10 Rally Wheel - Fitment?

Another view from the front.
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Old Today, 02:27 PM   #8
72malibu
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Re: 15x10 Rally Wheel - Fitment?

Quote:
Originally Posted by Loco83 View Post
Another view from the front.
Where did you get your trim rings? Those are the style I'm planning to use.
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Old Today, 02:50 PM   #9
Loco83
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Re: 15x10 Rally Wheel - Fitment?

I ordered my whole tire and rim pkg from Jegs, I like the look of the narrow trim rings.
https://www.jegs.com/i/JEGS/555/681501/10002/-1
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Old Today, 06:02 PM   #10
3drburb
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Re: 15x10 Rally Wheel - Fitment?

245/60/15 on 15x8 and 295/50/15 on 15x10 will be to short on a truck that is not lowered a lot.
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