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CTS-V
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Discussion Starter #1
I'm looking for a used CTS-V, 2005-7. My main concern with a used V is the clutch. How long should the original clutch last? I know it depends on how the car was driven. I'm looking for a V with under 20K, and I really don't want to replace the clutch anytime soon.

Other than the rear end issues, what should I look for in a used V before I pull the trigger?
 

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2017 ATS-V Manual Trans
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8,206 Posts
Dealer took my car for a ride and blew my original clutch at about 20,000 miles, they must've beat the crap out of it. My slave went sprung a leak and I fried my clutch pretty bad at 48,000 due to the low fluid, it's not slipping, but I smoked it pretty bad so I'm using that as an excuse to put in a LS7 set up.

It's a big fat 400hp sedan, don't worry about the clutch going bad cuz it's gonna.
 

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2005 Cadillac CTS-V
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188 Posts
:welcome:

I'm at 51.5K miles and haven't had any issues with the clutch yet. That's with an aggressive driving style too. :lildevil: Just keep the fluids clean and it shouldn't be a problem.

Listen for the dreaded rear diff bushing clunk and make the seller fix it if it's there. You should crawl underneath and check for motor mount and pinion seal leaks too.

This car has some regular issues, but nothing this forum can't help you with. Once you start driving one, it's hard to stop. Especially if you get bit by the mod bug.
 

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2017 ATS-V Manual Trans
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8,206 Posts
You will have a blast with this car.
 

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05 PLATINUM CTS-V
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2,985 Posts
a silver LS6
 

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06 CTS-V
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88 Posts
I have an 06. I had a new clutch put in at 23k. My clutch didn't go out but it was getting sloppy and I wanted piece of mind. The dealer mechanic told me he's doing V clutches on average at about 25k to 30k miles. He said he's put them in at 50k, he's done them at 10k, but 25-30k is about average. I imagine the Houston summer heat and bumper to bumper traffic don't help with clutch life either.

I can drive a stick but I am to blame for 23k on my factory clutch. I traded my STi for the V and working the clutch in the STi was a tad bit different than the V. You slide the clutch in the STi and sliding the clutch in the V is not a good idea. Took me the first couple thousand miles to end that habit.
 

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2005 CTS-V, Black
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2,165 Posts
I'm going on 40k on my first clutch. This car isn't known for clutch issues, but rather differential issues. The clutch is the least of your worries.
 

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05 PLATINUM CTS-V
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im on 54k on my oem clutch and its as good as new.. and i "drive" the car
 

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'06 Z06, '05 CTS-V 453rwhp/434rwtq (sold)
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I have an 06. I had a new clutch put in at 23k. My clutch didn't go out but it was getting sloppy and I wanted piece of mind. The dealer mechanic told me he's doing V clutches on average at about 25k to 30k miles. He said he's put them in at 50k, he's done them at 10k, but 25-30k is about average. I imagine the Houston summer heat and bumper to bumper traffic don't help with clutch life either.

I can drive a stick but I am to blame for 23k on my factory clutch. I traded my STi for the V and working the clutch in the STi was a tad bit different than the V. You slide the clutch in the STi and sliding the clutch in the V is not a good idea. Took me the first couple thousand miles to end that habit.
Your dealership must get a lot of V owners that abuse their clutches like you did your first.

I don't think clutch like is a concern when buying a V anymore that it would be buying any used manual transmission car.

My 48k miles stock clutch is holding strong even with a maggie on for the last 7k miles. Several guys have reported 70k+ miles with the stock clutch and no issues. If it is taken care of, it will last.

But to say V clutches only last an average of 25-30k miles is flatout wrong. Very few have replaced a clutch that early, and if they did, it was because of abuse or to upgrade to a kit with a lighter flywheel for a performance upgrade.
 

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CTS-V
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572 Posts
30K on mine and I'm sure I have another 30K left in it.
 

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06 CTS-V
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88 Posts
Dang, 40-70k miles on these clutches while driving hard? Maybe the dealer is taking people to the bank? Wouldn't shock me if that were the case. They are always trying to get me to service my trans at $350 as well as any other service they can get me for. I know my clutch was bad, I burnt it up and saw what was left of it. This one should last me until I sale the car.
 

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2016 ATS Premium 6-spd MT
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14,092 Posts
... This car isn't known for clutch issues, but rather differential issues. The clutch is the least of your worries.
:yeah:



... I don't think clutch like is a concern when buying a V anymore that it would be buying any used manual transmission car. ...

... to say V clutches only last an average of 25-30k miles is flatout wrong. Very few have replaced a clutch that early, and if they did, it was because of abuse or to upgrade to a kit with a lighter flywheel for a performance upgrade.
:yeah:
 

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CTS-V
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Discussion Starter #14
Thanks guys. I found 2 STS-V in the same price range as the CTS-V, but I do prefer the CTS-V. Thanks for the clutch info. I feel a little better. It's just hard buying a used car like this when you don't know how the previous owner(s) drove it.

Is the rear diff issue only a problem with abuse, or is the rear diff going in a certain mileage range on all or most Vs???
 

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05 Black CTS-V
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233 Posts
Thanks guys. I found 2 STS-V in the same price range as the CTS-V, but I do prefer the CTS-V. Thanks for the clutch info. I feel a little better. It's just hard buying a used car like this when you don't know how the previous owner(s) drove it.

Is the rear diff issue only a problem with abuse, or is the rear diff going in a certain mileage range on all or most Vs???


Get the CTS-V. The STS-V is cool, but it would be like driving a fast couch. I am sure the CTS-V is a more track friendly car.

The rear diff is something that typically goes bad due to wheel hop or abuse. Most of the cases I have researched on these forums have been diffs that were torn apart due to bad wheel hop. Check out the new axles available. There was a post on the forum recently and these seem to solve the wheel hop problem. You can check the read diff by driving the car and listening for a whine from the rear end around 50-60mph or while driving slowly backwards and turning (driving in reverse in a circle in a parking lot).

I wouldn't worry much about the clutch. The LS7 clutch and flywheel upgrade is a pretty popular modification, and our flywheel is supposed to be pretty heavy.
 

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CTS-V
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Discussion Starter #16
Another question I have is LS6 or LS2? I kinda prefer the LS6, but many of the 2005s have higher mileage now. Is there much if any difference? I like the lumpy cam idle in the LS6.
 

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05 Black CTS-V
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233 Posts
Another question I have is LS6 or LS2? I kinda prefer the LS6, but many of the 2005s have higher mileage now. Is there much if any difference? I like the lumpy cam idle in the LS6.
You have no idea the can of worms you just opened. There is a serious LS6 vs. LS2 rivalry on here.

The LS6 is going to have the idle you are looking for due to it's more aggressive cam.

My vote would be LS6. You get the same kind of power in both engines, but the LS6 has the cooler idle and more exclusive motor. The LS2 after all is just a GM motorthat is put in trucks. The LS6 is only found on 2004 and 2005 CTS-V's both of which you may have a tough time finding with lower mileage. I absolutely had to have an LS6, so when I bought mine I just looked for the lowest mileage V that was certified pre-owned. I had read too much about diff issues to confidently purchase a V out of warranty. These things aren't cheap to repair!
 

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05 CTS-V, 04 Armada, 11 STi Hatch
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Great thread guys. I'm looking at an 06-07 as well. Glad to see some ex-subie drivers on here. I am a die-hard Subie guy, but need a DD and my LGT wagon will go to trailer queen duty and winter duty.

Subscribing to this thread.

-mike
 
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