Rim specs question

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Jul 1, 2004 | 04:03 AM

Strahley

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From: Manhattan, KS

Rim specs question

Will this rim...

17x9"
6" rear backspacing
5" x 4.5" bolt circle

Fit my '01 Z28? I have no idea when it comes to the specs of rims, so sorry for what is probably an easy question. They are Cragar S/S forged alloys, if anybody was wondering. I think they would look great on the NBM

The next smallest rim is...

17x8"
4.5" rear backspacing
5" x 5" bolt circle

But I read that I would need at least an 8.5" rim to hold a 275 tire

Would this fit better? Better question, am I better off with the 17x9" so the tire will fit properly?

The rim in question..

Thanks in advance

Jul 1, 2004 | 08:09 AM

Fulton 1

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Bolt circle for F-body is 5 on 4.75".

Check out the American Racing Torque Thrust II's or the Boyd's Smoothies - they're very similar in design and available in the correct sizes.

Jul 1, 2004 | 08:11 AM

sgarnett

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6" is the wrong backspacing for our cars. 7" is about right. Ideally, you want to keep back spacing in the 6.75~7.25 range and offset in the 38~50 range for a 17x9 or 17x9.5 rim.

Jul 1, 2004 | 08:35 AM

Strahley

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Arighty, how about 15 inch? I see people with 15" TT2's on, but the rear spacing I see is pretty low. These 15x8" (5x4.75" bolt circle) TT2's have a 3.75" rear spacing on them

The 17x9.5" ones have the 7" rear spacing, but I wasn't wanting to spend 280 bucks for each of these back rims. Or will I have to?

Jul 1, 2004 | 09:20 AM

Fulton 1

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Quote:

Originally Posted by Strahley

Please read this thread - https://ls1tech.com/forums/wheels-tires/120716-wheels-tires-everything-you-should-need-know-here-must-read.html - it will help you decide which size range you need. Then you can look for the best price. American Racing wheels are generally pretty inexpensive. Take a look at our sponsors or contact your local Discount Tire to see what they can do for you pricewise.

Oh, and if I were you, I'd stick with 17" or larger sizes unless you're looking for drag wheels or something.

Jul 1, 2004 | 09:26 AM

Strahley

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From: Manhattan, KS

Well I was wanting this to be a full street car, but I knew that 15" rims would allow me to hook harder at the track than 17" rims would

Right now I have Nitto Drags, 245s on a 16" rim. These things can't keep me straight

And they are too skinny

Would 275 BFGs on 17" rims be much of an improvment?Either that, or the new Mickey Thompson Drag Radials @ 295 on 17"? I don't need to pull the front tires up just yet, but I need something that will hook good. Either that or for the track switch tires out *shrug* Too many choices!

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