Non-stock wheels/brakes? What about spare tire?

[WVZR-1]

Originally Posted by XfireZ51

Brett,

Maybe you could measure the barrel diameter on that spare and I can compare to the Z06 wheel.

I've read I'm quite sure that the only "direct-fit" compact spare is the '08+ CTS which is like the GTO but with a larger barrel and an appropriate offset. The compact is like the older CTS - it's an add on option that most don't have or even ship with. A salvage yard buy would be probably not possible. I believe they might even be used as "skinnies" like the C5 guys do with the GTO.

The package part # is 19179359 and it's an 18 X 4 complete with tire, compressor and accessories.

[tf95ZR1]

So any new recommendations on what to use as a spare
over C6 Z06 calipers other than Fix-A-Flat?

[GOLDCYLON]

Originally Posted by XfireZ51

Robert wheel poll got me to thinking. So now that I have upgraded to Z06 wheels and front brake calipers, what to do for potential flat? Staggered wheel sizes complicates things a bit more. Right now I've got a can of flat fix and compressor.
Anybody else w suggestions?

Well I know your not running wheel sensors DOM but Fix a Flat will hose those up for sure if you were.

All things considered a Triple AAA tow or I have towing via my insurance CO to the nearest facility. Or leave it there if you can pull the wheel etc.

[Mystic ZR-1]

tire plug kit
wire cutters (for pulling out nail)
12v compressor (plug into cigarette lighter)
fix a flat, just a squirt (may help plug seal)

of course if you ripped a big hole in the tire you're screwed...

AAA card, "don't leave home without it" (especially in a 20 year old car)

[mike100]

Maybe the elusive CTS 18" spare might fit...almost certainly it could with a spacer. I thought about picking one up for my C6, but i have not been looking lately.

I'm running the 17" GTO spare with my C5 caliper conversion on my 91 though. Been there-done that on the whole not having a spare when you need one thing.

[mike100]

[WVZR-1]

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.

[Blue Flame Restorations]

Yep, I had to trim the hub hole on my GTO spare.

I do have AAA Road Insurance though.

[WVZR-1]

From CF -

The CTS spares require a 1/2 spacer/adapter.......the GTO spares require a 3 1/2 adapter. This to clear C6 - Z06 brakes. I lost the link and was going to post a couple snapshots. I thought I had read 3 1/4 previously for the GTO spare but couldn't find it the 2nd time. The spacer/adapter price would kill that idea!

[mike100]

Originally Posted by WVZR-1

From CF -

The CTS spares require a 1/2 spacer/adapter.......the GTO spares require a 3 1/2 adapter. This to clear C6 - Z06 brakes. I lost the link and was going to post a couple snapshots. I thought I had read 3 1/4 previously for the GTO spare but couldn't find it the 2nd time. The spacer/adapter price would kill that idea!

I saw the post with the 3.25" adapters- that was ridiculous, but for a functional spare (and not a drag skinny), A 1/2" adapter on a CTS wheel would be ok considering it is your only option- you'de just have to have the extras tool and hardware on hand to bolt it up if you needed the use of the donut.