Cudos to AFS

[WVZR-1]

Originally Posted by efnfast

=But, back to my wheels.
Looks like I ordered the wrong ones. I'm so pissed at myself.
Somebody please confirm offsets for me so I can straighten this out.
Anybody need a nice set of GS sized rims? -Steve

If the wheels are the "deep pocketed" 50mm offset wheels then just do the "pass through" wheel spacers that many of us have done. I did mine back in '03 or early '04. The advantage of the spacer is that you could actually tailor the fit to the car. I believe that most do an 18mm spacer but you could do a "poll" sort of inquiry. 14mm gets you even to the 36mm anything more moves it further outboard. There are many vendors of proper length studs to allow the use of spacer. The GM offering that I used when I did mine was a very reasonable purchase at the time. They're not "reasonable" any longer and I've seen mentioned "performance" in discussions of them but there's nothing "specialty" about them other than length.

They were released in the "Performance Catalog" and it was a tough find for most because they were actually cataloged in the "Oldsmobile" section of the catalogue. Anything "other than" stock configured parts was in that catalog. Where else would you catalog it?

First thing you need to do is get a "hands on" of your wheels again, confirm the casting information and move on.

***Since you have the wheels you want to measure your wheels and determine the exact offset of what you have in your possession. That's very easily accomplished. Wheels are sold in "advertised" offsets but I'd measure what I had in my hands and confirm. Assume nothing.

[GOLDCYLON]

Originally Posted by KILLSHOTS

The item description in your link says the rears have a 50mm offset. Is that what you received? Should be 36mm and will be stamped on the back of one of the spokes. Julio at AFS does have the correct 36mm offset for the rear, but it's a deep-dish style instead of the deep-lug style.

Yeah chris I was wonder about that as well

[efnfast]

So, the fronts are 17 x 9.5- 56mm offset.
the rears are 17 x 11- 36mm offset.

[WVZR-1]

Originally Posted by efnfast

So, the fronts are 17 x 9.5- 56mm offset.
the rears are 17 x 11- 36mm offset.

You're asking or mentioning what you bought?

The wheel specifications you've mentioned are correct for the ZR-1 wheels for all production years and all the various styles.

Another possible alternative that I've never done but could be considered (would require dimensionally confirming car to car). I believe that you can purchase a 19mm "adapter style" spacer that would require no additional purchases of studs etc. If there's a pocket between the wheel stud bores of our AFS purchase this could work and work well. A very quick swap of stock wheel to A-mold style if you desired. Using the "pass through" with the longer studs makes the wheel swap next to impossible.

[KILLSHOTS]

Originally Posted by efnfast

So, the fronts are 17 x 9.5- 56mm offset.
the rears are 17 x 11- 36mm offset.

Those are the stock offsets, yes. My advice is to call Julio and arrange to switch out the rear 50s you received for the correct 36s. I was considering a set when I first bought my Z last year and he confirmed that he had them and even sent me a pic of the rear. Since you haven't mounted them yet, there's no sense in running a spacer when you still have a chance to do it right. Good luck.

[WVZR-1]

Originally Posted by KILLSHOTS

Those are the stock offsets, yes. My advice is to call Julio and arrange to switch out the rear 50s you received for the correct 36s. I was considering a set when I first bought my Z last year and he confirmed that he had them and even sent me a pic of the rear. Since you haven't mounted them yet, there's no sense in running a spacer when you still have a chance to do it right. Good luck.

Their 36's I don't believe are a "replica" and that was the intention I believe of the original purchase. If the original discussion was for a ZR-1 and replica mentioned I'd maybe just be looking for some $$ compensation.

[XfireZ51]

Some years ago, I had bought a set of AFS A molds for my 84. These were the GS style wheels, ie black spokes w aluminum rim and deep lug. They were the correct offset for the 84 which was 36mm.

[WVZR-1]

I believe this would be an easy decision making procedure.

Take a "plumb-bob" and drop it from the quarter lip at the rear axle center. Measure from your current side wall to the string. You can accomplish a couple things with this, first establish the location of the rear assembly within the body and determine how much of a spacer you feel your particular car can accommodate. If you feel you can accommodate a 5mm increase towards the outboard lip of the quarter then the 19mm "bolt-on" would do. I expect that this would work for most, an exception would be a car that had a rear axle offset towards the right (generally) that is greater than most.

You need to drop the "plumb-bob" on each side and compare.

Costs nothing to measure.

[batchman]

Steve, my wife bought a set of 4 of those for the red car when she was setting it up. 2 on the front with 315s, no problem, two 18mm (or maybe it's 17mm) spacers from DRM (I think), but needed longer studs and 335's on the rear.

I eventually found something lighter so those now hold my school tires.

- Jeff

[-=Jeff=-]

Originally Posted by XfireZ51

Some years ago, I had bought a set of AFS A molds for my 84. These were the GS style wheels, ie black spokes w aluminum rim and deep lug. They were the correct offset for the 84 which was 36mm.

right years ago the aftermarket had the correct 'Pockets' in the center for the different offsets

Now it is based on the dish of the wheel, allowing the Manufacturers get have one stamp/mold for the centers instead of 3. I figure the barrel portion is cheaper/easier option to change on the wheels