I am looking to buy 4 3rd Gen 16x8 rear wheels (16mm offset). I would like to fit some tires to them and see if I can stuff them under the wheel wells of my 4th gen Firebird. I would prefer the T/A honeycomb wheels, but I will wait and see what kind of choices that I get.

Thanks.

Keith,

The Honeycomb wheels had the least brake clearance. I know some of the Baer kits had problems with them. I love those wheels, but I'm not sure they are the best choice for your project. You may be better off with Formula rims or Iroc wheels, etc. Then again, maybe not. Just thought I'd mention it.

you might try thirdgen.org classifieds if you haven't already

I think you are looking for the front wheels Keith. They're the ones that will widen the track the most.

Of course, I could be wrong, maybe you aren't looking to do that.

Sam, the fronts are 0mm offset and the rears are 16mm offset. I *think* that the 16mm will fit and I am less confident in the 0mm given that the stock offset for the 4th gens is 56mm.

See my thread about 3rd gen wheels on 4th gen cars in the Wheels and Tires forum.

I think you're thinking about the offset the wrong way (or maybe I'm mis-understanding).

The 16mm wheels, the rears, are +16mm, which means they are 16mm to the inside (the stock 4th gen wheels are +55, and look how much backspace they have).

I just looked at my set of GTA wheels, the fronts at 0 offset have 4" front and back. The rear with a 16mm offset have 4.64" of backspace and 3.36" of "frontspacing". In other words the rear wheels tuck in further than the fronts do.

I gathered from you other post you wanted the wheels that moved the track out the most. Those are the front wheels. If the rears were -16mm, they'd be the ones to use, but they aren't negative offset which is what you'd need to accomplish this. This is why front GTA wheels are so hard to find. All the A-Sedan guys want them for all 4 wheels.

Sam, Your analysis is correct. However, I think he wants the +16mm offset to minimize the risk of rubbing the outer fender lip/well. They won't have any issues inside seeing as the stockers are +56mm but they will be wider to the outside by 40mm than stock, but not as wide as the 0mm offset fronts. Again, minimizing risk of rubbing, increasing track width, and also finding a slightly cheaper set of 'unwanted' rear pairs knowing the fronts are more desirable.

Yes, that describes my intent correctly.

o.k. - you guys need to learn that there is negative offset and positive offset. no way a car w/ OEM wheels of -56mm is gonna be able to use a wheel w/ a +16mm offset.

don't confuse backspacing w/ offset. backspacing is from the inner most lip to the mounting face. offset is from the CENTER LINE of the wheel to the mounting face.

about 26mm is one inch.

stock 4th gen = -56 (towards outside of wheel from C/L)
rear 3rd gen = +16 (towards inside of wheel from C/L)
so your looking @ a 72mm difference (2.7xxx inches!).

this also jives w/ what i was told about using a 4th gen rear in a 3rd gen, the rear in a 4th gen is wider by 2 inches or more.

run 4th gen wheels and use a quality spacer w/ quality lug studs and all will be fine.

http://www.carad.com/eBaymotors/viewPhotos...listing=1250446

Bringing this from the other thread.

i'm seeing it now, and not believing it!

That's what I said.....But. Consider that an 11" wheel fits, so an 8" with the backspacing 3" off, could still fit.

just for clarification, stock wheels are +56mm, not -56mm.
the change in overall track width will end up being 80mm [(56mm-16mm)*2], or about 3.15". Yep, a bit wider.

I knew I've been sitting on these for just a moment like this. However I would like to sell them as a full set of fronts and rears. I have tires on them now. Fronts are 245/50-16, the autozone brand and the rears are 255/50-16, they have 'Defender' on the sidewall I can have the tires pulled off for whatever it costs me to get rid of them.

From what I can tell they're straight, I haven't played with them any to have the tire shop tell me otherwise. I cleaned them up a little since those pics were taken and they came out pretty good. If you want more pics just let me know, I only have 2 rims at home now, the others are by a friend who has a G-body. He doesn't want to mess around with spacers

Insert your disclaimers here... as is, all sales final, best offer, e-mail me for more info/pics and offers.

From what I've heard everyone wants the GTA rims since they're the lightest 16 x 8 thirdgen wheels around

http://www.vilipend.com/~frrax/album20

Keith, now that I remember these are for a 4th gen CMC car, I think the rules state the track of the entire assembly cannot be any wider than with stock wheels, and I believe you have to use 4th gen wheels or equivalent offset with a 4th gen rear to keep that. No CMCer has used 3rd gen honeycombs on a 4th gen to my knowledge. Good question for Al.

8.34. Wheels/Tires
8.34.1. All cars may use up to a maximum size 16"x 8" rim of one piece or two piece welded (non-exotic) construction.
8.34.2. Maximum tire size is 255/50 16". The only tire brand and model allowed is the Toyo Proxes RA-1.



i see no mention of wheel offset or track width limits. if you have seen mention of it anywhere, post the rule please.

I'd have to do some diggin' Glenn, I was the person who got 4th gen rears legal for use in third gens. I was told 4th gen wheels would have to be used when using a third gen with a 4th gen rear to not increase the width by a director. Specifically in the rules I am not sure. Check rear ends.

I have already had a dialog involving Al and Tony and I got the impression that I am OK running 3rd gen rims as long as they don't rub the wheel wells (this is common sense, not a rule). In addition, I just scanned the rules and I don't see anything related beyond the wheel rule and the fact that you can roll fender lips for tire clearance which would be unnecessary if you were required to run stock offsets...

Are you saying that these are for sale and it's "all or nothing"? Or are you contemplating breaking these up. My impression is that the fronts would be interesting to AS and CMC 3rd gen racers...