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Discussion Starter · #1 ·
I want to buy a set of rims and Centerline stated that an 8" rim with 4.5 of backspacing will fit on the front and rear. Most of you guys say with an 8" rim you need 3.5 backspacing. Anyone try 4.5 backspacing or have any ideas on how they may fit? :confused:
 

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I don't say 3.5" inches bs because large tires may hit the fender lip.

On the other hand, 4.5" will put a 275 right against the frame on the inside.

Centerline has a few tires (Terminator series as I recall) that are 8" with 4" bs and they fit well. I have the Autodrag IIIs on a car in the rear and they fit very well.
 

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Discussion Starter · #3 ·
Would a 255/45/17 tire hit on the frame with the 4.5 backspacing? I want to stay with this rim as it is on sale. The tire would also give me a 26.1 as the stock tire.
 

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I don't thnk so but would not swear to it. The GNX clones seems to be about 4 3/8s b.s. I run 255s on them with some clearance. You could install aluminum drums and space them out an 1/8" more than the iron drums.
 

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Discussion Starter · #5 ·
What would be the best backspacing for the front? Looking to run the same size tire on the front so I can rotate them.
 

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not sure for a 255. I run 245s on the front on the same wheel.

I believe the stock 86/87 wheels (gn steel) are around 3 7/8s. I used to run 245s on them with minor rubbing at full lock.

I have 4.5" welds on one of my cars..think it has 225s.
 

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Discussion Starter · #7 ·
When you say the same front wheel Steve are yoiu saying a 4" backspace? By the way I will be staying with the 4" backspace on the rear to be safe.
 

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No...I meant the GNX clones that were 4 3/8s

I ran 255s on the rear and 245s in the front. (245 x 50-16s)

I also ran 245s on the stock wheels that were 3 7/8s as I recall. 245 x 60 x 15)

On my son/s car, it has 15" Weld Dragstars. Fronts are 4.5" bs and rears are 3.5"

I don't like the 3.5s as wider tires tend to rub the fender lip and the 4.5s allow them to rub the frame...

In general, with 8" wheels most cars seem to like 3.75 to 4.375" bs....some cars have the body sitting to one side or the other and one side may have more/less clearance than the other.
 

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I'm running a weld draglite 15x8 3.5RS on a BFG DR 275/50/15 they fir beautifully. :)
 

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They fit inside the fender lip? :)
 

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I have 4.5" BS on my car headbang If your rear is centered it will be fine. I was off a little so I put some small spacers on for insurance loser
 
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