ZR-1 Net Registry Forums - View Single Post - Non-stock wheels/brakes? What about spare tire?

WVZR-1 · 01-01-2013

The 18" CTSV should wholesale for maybe $360 or so and most/some Cadillac dealers stock them. If you've got a "relationship" with one you could maybe arrange a "trial fit". I supplied the correct part number I'm quite sure. Need to remember the bolt circle for the GTO and the CTS-V is 120mm not 120.7 or the implied 4.75". It's not considered an issue!

I believe I've come across a "stumbling block" the CTS-V is only a 66.9mm center-bore so the wheel center would need opened up to the 70.3mm dimension. There would be no sure "trial fit" but I would think it would slip over far enough to confirm that it would be a "go"!

Actually a GTO should require a minor trim for fit also for those interested. It's 69.5mm I believe.

"Mike100" should be able to confirm the "minor" modification required. It might "force fit" being less than 1mm difference.

01-01-2013	#17
WVZR-1 Join Date: Oct 2004 Posts: 1,884	Re: Non-stock wheels/brakes? What about spare tire? The 18" CTSV should wholesale for maybe $360 or so and most/some Cadillac dealers stock them. If you've got a "relationship" with one you could maybe arrange a "trial fit". I supplied the correct part number I'm quite sure. Need to remember the bolt circle for the GTO and the CTS-V is 120mm not 120.7 or the implied 4.75". It's not considered an issue! I believe I've come across a "stumbling block" the CTS-V is only a 66.9mm center-bore so the wheel center would need opened up to the 70.3mm dimension. There would be no sure "trial fit" but I would think it would slip over far enough to confirm that it would be a "go"! Actually a GTO should require a minor trim for fit also for those interested. It's 69.5mm I believe. "Mike100" should be able to confirm the "minor" modification required. It might "force fit" being less than 1mm difference. Last edited by WVZR-1; 01-01-2013 at 08:29 PM.