Cadillac CTSV brakes and half shafts?

[clmorton]

Curious whether anyone knows whether 2004/2007 CTS-V brakes and half shaft parts will bolt right in to a Solstice. I realize they are six bolt instead of five and I know about the Hot Rod article, but I find it hard to believe that the CTS-V shafts have the correct splines or length that would allow them to be used as true bolt ins, never mind the front end and concerns there. Any input would be helpful.

Cheers All

[Koobie]

That is a great question. I park by a CTS-V at work and the brakes are MUCH bigger than what we have on our cars.

[Yamatr3]

The splines are the same. I don't know about lengths.

[CodyBMW]

Bump. I desperately want to swap the CTS-V rear brakes onto my Sky, anyone have any 'new' knowledge on this?

[Fformula88]

Originally Posted by CodyBMW Bump. I desperately want to swap the CTS-V rear brakes onto my Sky, anyone have any 'new' knowledge on this?

Welcome to the forum! I cannot help with your project, but wish you luck!

[wegman]

same here let us know what you find

[thelen84]

I have CTS-V halfshafts sitting right here. However, I do not have my car close by... So, I can measure these if someone can measure the Solstice halfshafts.

-Adam

[WadeLinger]

CTS-V parking brake is Corvette-style. Solstice parking brake is built into the calipers. They used a pinion brake on the Hot Rod car for a parking brake.

[NormSky]

CTS-V splines are the same as the C5/C6 as I am using Corvette hubs on my CTS-V which allow me to run BMW wheels for a much larger selection. The V calipers could be mounted to the C5 Corvette with a small spacer. I think the mounting points for the caliper were 4" or 4.5" on center.


Norm

[joshmass]

What about the half shafts? Did anyone ever find out an answer to that?

[sorta_se7en]

Car-part.com lists sts and srx axles with Solstice/Sky.
CTS axle listing does NOT show any other model interchange.

This isn't absolutely definitive; check with your local junkyard

[perris]

Originally Posted by Koobie That is a great question. I park by a CTS-V at work and the brakes are MUCH bigger than what we have on our cars.

flash's owner told us you might get longer stopping distances with bigger brakes and upset stability control since calibration on abs will be way off

then on another board someone who did indeed put on bigger brakes does have longer brake distances

be careful with this mod, better pads are not only less expensive, you will probably have shorter brake distances and more accurate stability control

[WadeLinger]

Here is a quote from Hot Rod Magazine on the performance testing of the Hot Rod Solstice brakes, which they say were CTS-V brakes:

After the skidpad, we tested the braking. We knew those big Brembos in the sub-3,000-pound car would halt it in a hurry, and man did they ever. Entry into the supercar 60-0-mph braking club is usually earned at 110 feet, but the Solstice kicked that number's butt with a 60-0 distance of a mere 95.62 feet. Without the seatbelts, it would literally throw you through the windshield.

It is indeed possible to use CTS-V brakes, but you have to have some machining done; as well as fabricate some brackets and spacers.

[GS Stage 1]

Originally Posted by WadeLinger Here is a quote from Hot Rod Magazine on the performance testing of the Hot Rod Solstice brakes, which they say were CTS-V brakes: After the skidpad, we tested the braking. We knew those big Brembos in the sub-3,000-pound car would halt it in a hurry, and man did they ever. Entry into the supercar 60-0-mph braking club is usually earned at 110 feet, but the Solstice kicked that number's butt with a 60-0 distance of a mere 95.62 feet. Without the seatbelts, it would literally throw you through the windshield. It is indeed possible to use CTS-V brakes, but you have to have some machining done; as well as fabricate some brackets and spacers.

What is really interesting is that the stock GXP/Redline is already rated with a stopping distance of only 116 feet for 60-0. With just upgraded brake pads, I bet you it will go down to at least 110 feet, maybe even better.

Has anyone run any tests with stock calipers and upgraded pads?

[Flash's Owner]

Originally Posted by WadeLinger Here is a quote from Hot Rod Magazine on the performance testing of the Hot Rod Solstice brakes, which they say were CTS-V brakes: After the skidpad, we tested the braking. We knew those big Brembos in the sub-3,000-pound car would halt it in a hurry, and man did they ever. Entry into the supercar 60-0-mph braking club is usually earned at 110 feet, but the Solstice kicked that number's butt with a 60-0 distance of a mere 95.62 feet. Without the seatbelts, it would literally throw you through the windshield. It is indeed possible to use CTS-V brakes, but you have to have some machining done; as well as fabricate some brackets and spacers.

Keep in mind that the Hot Rod car (built in conjunction with HPVO) had ABS tuning done to it so the brakes would operate at peak slip, AND they were tuned for the super-sticky tires they were intended to operate on. This is NOT just slapping on CTS-V brembos.