Im well aware of the difference between spacers and adaptors and if you plan on doing any racing of any kind, i wouldnt recommend either

Just wanted to be sure.. because most people don't when they talk about this stuff.

I had a 1/8" spacer on my last set of wheels, and I made at least 50 passes down the local 1/4 mile track with them before I bought new wheels. You just need to use your judgement and not beat the hell out of anything much bigger than that. As a rule of thumb though, I would not recomend racing with spacers.

Adapters from Skulite on the other hand are custom machined out of a solid piece of metal and are supposed to be very very durable. I have never read about one person who has had problems with them.

If you have a stock ride (Iron Duke, V6, or v8), chances are that you're not making much more than 220HP at the wheels anyway, so you're going to be pretty safe making passes down the track. That doesn't mean that you should beat the hell out of them, but you're not going to die by any means.

Just my for what it's worth.

17x11 person here...

Here is what i've found - firebird owners will have a more difficult time tucking in 11" rear wheels - i have done it, and it requiered heat and a big hammer to get the tucked in.

I AM running a 1/2" slip spacer because the set of wheels i bought were a 36mm rear offset (vette offset) - if you have a 50mm offset rear, then you can use a bolt on spacer (min thickness for a bolt on spacer is around an inch)

I personally have NEVER seen a bolt up type spacer fail - even under the most extreme cases. For my rear, i put in better studs because of the spacer, after roadcourse time, autocrossing, and 1.65 60's on the 315 dr's, there has not be a problem...

here's some pics -

this one shows how well they are tucked in -



And i don't know how anyone could say a set of chrome 17" ZR1's couldn't set off a car -





after some por 15 -



one last shot of the rear -

18X9.5, I can get you them for $440- shipped

Steve-

Whats the normal offset for a rear end?

If theres a difference, how did you get yours to 36mm?

damn, those 18s are so tempting. ever since you first mentioned the price ive wanted to get a hold of them. but between my new stealth ram, and a tranny rebuild, i dont have time for wheels. how much longer is this deal gonna be around?

they should be around for awhile.

There isn't really a regualr offset - it depends on the width of the wheel.

Llike i said, you have to go to further lengths on a firebird to tuck in the wheels... Not so much on camaros. Firebirds if you measure between the fender lips, are about a total of 1.5 - 2" narrower at that point than camaros (the body does narrow down more)

As for the wheels, i'm pretty sure the 4thgen offset for an 11" wheel is 50mm... my wheels are the VETTE version (36 mm offset) - they were originally intended for a vette rear. between the flanges, the IRS of the vette is a little narrower than a 4th gen rear.

What it really comes down to is you DO NOT want the 36mm wheels if you have a firebird.

36mm ='s 1.42"

50mm ='s 1.97"

difference - .55" (which is close to my spacer btw)

If you have a firebird , with a stock rear (not a wider 4thgen rear) you will not need to run any spacer at all on the rears if you have a 50mm offset 11" wide rear wheel.

Again, this is firebird specific - Andris Skulte is running the same wheels as mine (36mm offset wheels) with either 1.25 or 1.5" spacers on the back with the wheels tucked in sufficiently on his Iroc. He was as puzzeled as i was when i told him i needed only 1/2" spacers for the back. We basically found out the body its self is narrower over the rear wheels on the birds.

If you have a camaro, it's actually easier to deal with the 36 mm offset wheels - you will be able to use a bolt on spacer which is un doubtedly a better way to go than a slip on.

Wierd. I was at his place a few weeks ago, and he had the beater GTA wheels on it. Ill have to talk to him some more.

it's right on his website... no need to talk to him...

i'm not sure what your concern is...

who makes the adapters? and about how much are they for a set-4?