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The 93-96 wheels are brushed,not polished and have a sharp edge to the vanes in the face of the wheel. The rears as you know have the deep lug area and 93 Z wheels are one year only.
Thanks guys. I knew about the finish, offset, deep rear hub center and that they are one year only however I don't know how to tell if they are original. (stampings etc..). Is there a specific manufacturer stamp, offset stamp etc...like the A Molds?
Last edited by Too Slow '90; 11-15-2016 at 06:36 AM.
Thanks guys. I knew about the finish, offset, deep rear hub center and that they are one year only however I don't know how to tell if they are original. (stampings etc..). Is there a specific manufacturer stamp, offset stamp etc...like the A Molds?
All will have casting information on the back-side. The wheel was a single year production and there were never any reproductions that I'm aware of. I don't know that the casting number matched the SPO # but if it did the L/H would be 10180883 and the R/H 10180884. Someone with a '93 might be able to confirm the casting information with snapshots.
A very long time ago Kurt White said he bought some GM wheels that had the 10180883 L/H but were painted '91/'92 wheels. ASSUMING KW correct you just need to confirm the machined finish of the outside and the that information on the back-side.
He never presented any photographic evidence of what he received.
Are you just shopping or have located a set? If you've snapshots of the wheel back-sides I believe I can likely ID them. There's very likely a production date also but the format used could be very different. The information I believe would be inside the spokes in 3 different locations.
All will have casting information on the back-side. The wheel was a single year production and there were never any reproductions that I'm aware of. I don't know that the casting number matched the SPO # but if it did the L/H would be 10180883 and the R/H 10180884. Someone with a '93 might be able to confirm the casting information with snapshots.
A very long time ago Kurt White said he bought some GM wheels that had the 10180883 L/H but were painted '91/'92 wheels. ASSUMING KW correct you just need to confirm the machined finish of the outside and the that information on the back-side.
He never presented any photographic evidence of what he received.
Are you just shopping or have located a set? If you've snapshots of the wheel back-sides I believe I can likely ID them. There's very likely a production date also but the format used could be very different. The information I believe would be inside the spokes in 3 different locations.
Shopping but have heard of a few partial sets and want to know what I am looking at. My recently acquired '93 has chrome A Molds that are structurally sound but the chrome is in rough shape and I am grounded until I find a set of replacements (OEM A Molds or stockers would be fine) to put new tires on. Considering C6Z wheels as well but I would rather stay with original Z wheels.
Last edited by Too Slow '90; 11-15-2016 at 09:07 AM.
Shopping but have heard of a few partial sets and want to know what I am looking at. My recently acquired '93 has chrome A Molds that are structurally sound but the chrome is in rough shape and I am grounded until I find a set of replacements (OEM A Molds or stockers would be fine) to put new tires on. Considering C6Z wheels as well but I would rather stay with original Z wheels.
I'd say you do a WTB over at the ZR-1 Registry if you're interested in original saw-blades OR maybe here and there both.
Are your chrome A-molds done on OE A-molds or are they reproductions?
If I am reading the paperwork correctly they were exchanged for cores with Corvette Mike.
If they were OE/GM wheels that had been chromed generally the JWL (Japanese Light Alloy Wheel Association) certification is still on the wheel and visible. It would be "center" of the 2nd window clock-wise from the valve stem. To confirm the wheel manufacturer if the JWL isn't visible then you could check the back-side and confirm the authenticity.
If they were OE/GM wheels that had been chromed generally the JWL (Japanese Light Alloy Wheel Association) certification is still on the wheel and visible. It would be "center" of the 2nd window clock-wise from the valve stem. To confirm the wheel manufacturer if the JWL isn't visible then you could check the back-side and confirm the authenticity.
With a flashlight and a mirror I found the front stamping AFS 10214046 and the rear AFS 10214047 for the wheels currently on the car.
Last edited by Too Slow '90; 11-16-2016 at 06:44 AM.
That's what expected on OE/GM A-molds. Yours certainly are "plated OE/GM". Is the JWL visible on the outer wheel face? I'd certainly think so.
On the front I would have expected AFR - when you remove them to do a swap of whatever I'm sure that's what you'll be able to confirm.
I can't see much of anything on the front of the wheels but they need a good cleaning. The receipt for these shows $2k. What a shame that they can't be salvaged.
Last edited by Too Slow '90; 11-16-2016 at 07:44 AM.
You can't have them striped and powder coated of painted?
I wanted to however several people have told me nothing will stick due to the original chroming process. I thought it was a little odd since I have had bumpers re chromed without a problem however I did have more than one person say whatever I did it would not last.
Last edited by Too Slow '90; 11-17-2016 at 07:58 PM.
I have a set exactly like this (17x9.5 rear and 17x8.5 front) that I took off my car and have been wondering how to confirm whether they are authentic.
They are surprisingly light, which leads me to believe they are not replicas. They also have the JWL stamp mentioned earlier.
I have a set exactly like this (17x9.5 rear and 17x8.5 front) that I took off my car and have been wondering how to confirm whether they are authentic.
They are surprisingly light, which leads me to believe they are not replicas. They also have the JWL stamp mentioned earlier.
The left rear wheel is marked with 10180881.
I'd say it's safe to assume that yours are OE - the other rear is likely a 10180882. The fronts could be cast ...0879 and ...0880 but it would be very dependent upon when manufactured. Fronts would likely be cast ACU and ACW in addition to the eight digit.
11-14-2016, 09:47 PM
