Wheels & Tires: Everything you should need to know is in here. A Must Read!!!!!!!

[Todd@AZPowerAndSound]

theyll work all day long. 275s up front...285s will hit. 285 or 295 out back is fine, but BFH may be necessary

[Todd@AZPowerAndSound]

offset and backspacing are all relative. You can use either one to figure it out. Yes, theyll work

[FenixSS]

Kewl, so 275x35xZR18 will be good with with these Z06s I found for sale, the +54 is ok, and no mods needed for fit or use. I'm gonna order them as soon as I get my tax return, thanks Todd.

[01 ls1 z28 DA BRONX]

does anybody run a 275/40/17 on a 17x11? on the other site, its listed as it will fit, but not on this site..
please let me know how this set up works, thanks

[LIL SS]

Please excuse my ignorance on this but I am lost

A 15x10 (7.5 offset) Draglite will fit on the rear with some grinding. But the offsets you mention above don't line up with that.

10.0" +38 to +54 mm 275, 285 (38mm = 1.5" / 54mm = 2") Given these are opisite to the 7.5 your still at 8-8.5" off set.

Is the above for direct replacement with no grinding?


If that be the case, a 7.0" +35 to +40 mm (1.37-2.0) 15" draglite would fit the front?

[Todd@AZPowerAndSound]

Dont confuse offset and backspacing as they really are the same thing.

17x10 + 38 = 6.99backspacing. Not 1.5" like you show below.

As far as drag applications go...I honestly dont have much knowledge on them. We do not sell them, and ive never really researched. I do believe the draglites rub based on the fact they are 15" and the barrel will contact the caliper.

Originally Posted by LIL SS

Please excuse my ignorance on this but I am lost

A 15x10 (7.5 offset) Draglite will fit on the rear with some grinding. But the offsets you mention above don't line up with that.

10.0" +38 to +54 mm 275, 285 (38mm = 1.5" / 54mm = 2") Given these are opisite to the 7.5 your still at 8-8.5" off set.

Is the above for direct replacement with no grinding?


If that be the case, a 7.0" +35 to +40 mm (1.37-2.0) 15" draglite would fit the front?

[LIL SS]

Todd, The 38 that you mention is mm correct? 38/25.4=1.49.. I'm still not getting the way your coming up with the 7" back space..

[Todd@AZPowerAndSound]

yes mm.

backspacing =

(example) 9.5" rim with +56 offset.
Add one inch to rim, so now its 10.5. Divide that by two, 5.25. Add the +56 offset (2.20") 5.35 +2.20 = 7.55.

Your 15x10 above is a +51 offset

[LIL SS]

Thanks Todd.

[HI85WH1]

OK... My turn

I just purchased a set of Y2K's (OE...i think...) 275/40 18's on 18x9.5's on the rear, 245/45 17's on 17x8.5's on the front...

My problem is the rear fitment... I have interference on the INSIDE of the rear wheels.. (tires are rubbing) but only on harsh bumps, or uneven road surfaces.......

I have room to the outside, so is there a spacer that looks nice asthetically that will resolve my problem?

Thanks in advance... Robert

BTW, vehicle is '02 Z28

[Xsta Z 28]

Originally Posted by HI85WH1

OK... My turn

I just purchased a set of Y2K's (OE...i think...) 275/40 18's on 18x9.5's on the rear, 245/45 17's on 17x8.5's on the front...

My problem is the rear fitment... I have interference on the INSIDE of the rear wheels.. (tires are rubbing) but only on harsh bumps, or uneven road surfaces.......

I have room to the outside, so is there a spacer that looks nice asthetically that will resolve my problem?

Thanks in advance... Robert

BTW, vehicle is '02 Z28

You have two choices:

BFH or spacer.

The areas where the tire(s) contact the inner wheel well can be massaged and reundercoated - commonly done.

Or get a spacer, size is up to you. 1/4" can typically be used safely with OEM lug studs. Once you hit 5/16" or greater longer studs will be required. H&R Springs make some really nice hub and wheel centric spacers specifically for the car.

[HI85WH1]

Xsta Z 28,

I know GM used a hubcentric spacer on the 3rd gens... but they are a little thin for my taste.. I ordered two just to check fitment... I will check to see if H&R has a website...

I really hate to do the BFH mod on a car with a scant 11K miles... (you should have seen the look on my wifes face when I started talking about the hammer)

Note the car is otherwise completely stock... completely... not even the free mods...

[HI85WH1]

Hmm interesting,

seems they come with longer studs... dont know if I'll need them... but there is a dealer on island... and I just left work... they are about 2 miles away from my shop.

Thanks Xsta Z

[zacch123]

Saw a post while back but no response on this. Will the standard 01-02
SS Goodyear Eagle F1 275/40 17s work on a 17 x 11 wheel? Buying the wheels but no $$ for the wider tires at the moment. Would put 9.5s on the front and the 11s in the rear. The goodyear site hints that the tire will fit on 8.5 - 11 inch rims then mentions 9.0 to 11 inch...

Thanks

[Xsta Z 28]

It could . . . a 275 is 10 13/16" wide, it's gonna look goofy but for the time being.

[Vogonuts98z]

I understand the offset...but what is the amount of backspacing that will work with our cars. I have seen rims listed with 5 and 6 inch backspacing, but nothing about offset. So what amount(s) of backspacing will fit?

[Vogonuts98z]

So supposedly a 18x8 with 5" backspacing will work...so a 18x9.5 with 6" backspacing...will leave me with 1/2" sticking out of the fender well???

[Todd@AZPowerAndSound]

on 9.5 6 3/4" to 7.5" backspacing works and keeps you within the fender. Or +38 to +56

[BLASTER]

What is the width of the WS6 rims? Do we have any stock offsets? I was considering getting 18"x9.5" in the front and 18"x10.5" in the back. What tires can I run safely with minimal rubbing? It says the wheel offsets are 65mm & 58 mm and suggests a 1/4" spacer for the rear. Does this mean that the wheel will stick out really far? Thanks

[Ferocity02]

What is needed to fit 17x11" ZR-1's with 315's in the back. Car is not lowered. I was thinking +50mm offset, will this work, fender rolling? Are they direct bolt-ons? Thanks!