AWD conversion
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 12 of 12
Cadillac STS-V Series Forum Discussion, AWD conversion in Cadillac V-Series Forums; Has anyone done an AWD conversion using STS-4 parts? Being from the PNW and the V is my daily driver, ...
  1. #1
    JeffB13 is offline Cadillac Owners Member
    Automobile(s): 2007 STS-V
    Join Date
    Apr 2011
    Location
    Gig Harbor, WA
    Posts
    24

    AWD conversion

    Has anyone done an AWD conversion using STS-4 parts? Being from the PNW and the V is my daily driver, the only gripe I have with the car is the lack of AWD. So its come down to keeping the V and converting it to AWD or trading in for an Audi S6 or S7.

    When I was swaping out the brakes the other day, I noticed the driveshaft hole through the oil pan and the front bearings are splined which makes me think they are the same as the rear and the same as the STS-4. Looks like the front struts would be in the way front half shafts, but I would think the STS-4 ones would bolt right in.

    Do the STS-4 and STS-V share the same trans? I wonder if the AWD drivetrain could handle the torque of the V engine?

    So physically, I think it would be a pretty simple conversion with all bolt on parts and no custom fabrication. I would think the dificulty would come with all the electronics. The STS-4 uses the same size tires front and rear which would throw off all the calibrations from the ABS, traction control, active handling, etc. Maybe they could be imported from the STS-4? Do the STS-4s use a separate computer for the transfer case or is it programmed into the PCM?

    Any thoughts on this?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    PNBLWZD is offline Cadillac Owners Fanatic
    Automobile(s): '12 CTS-V Black Diamond Sedan, 09 CTS-V (sold), STS-V (sold)
    Join Date
    Jun 2010
    Location
    Los Angeles, CA
    Age
    43
    Posts
    267

    Re: AWD conversion

    Back in 2007, a friend of mine was looking at the different STS options and was trying to decide between the V and the 4. He was told that the reason GM didn't offer the V in AWD was the drivetrain couldn't handle the power.

  4. #3
    1madstsv's Avatar
    1madstsv is online now Cadillac Owners Connoisseur
    Automobile(s): 08 STS-V,09 escalade, 80 sedan deville diesel 99 c5 frc 78 z
    Join Date
    Aug 2010
    Location
    York pa
    Age
    29
    Posts
    1,316

    Re: AWD conversion

    There was a sts4 for sale a fue years ago that was turboed and was 480-500 hp. That would be the thing to do rather than the other way. But the Audi s7is very nice our rs7 if you have the $$$$.

  5. #4
    EChas3's Avatar
    EChas3 is offline Cadillac Owners Master
    Automobile(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
    Join Date
    Jun 2008
    Location
    Cedarburg, WI
    Age
    56
    Posts
    7,031

    Re: AWD conversion

    The differences are many.

    The AWD transmission tunnel protrudes further into the passenger footwell. The front shocks are different. The stabilty control is different. The AWD front differential gear is 3.23; what's the V's?

  6. #5
    PNBLWZD is offline Cadillac Owners Fanatic
    Automobile(s): '12 CTS-V Black Diamond Sedan, 09 CTS-V (sold), STS-V (sold)
    Join Date
    Jun 2010
    Location
    Los Angeles, CA
    Age
    43
    Posts
    267

    Re: AWD conversion

    Plus there has to be a transfer case, which probably requires a shorter output snout/housing to attach to the transmission if it's anything like the trucks.

  7. #6
    Charles Warren's Avatar
    Charles Warren is offline Cadillac Owners Fanatic
    Automobile(s): 2006 sts v8 and 2003 cts 3.2
    Join Date
    Nov 2011
    Location
    Atlanta, Georgia, United State
    Age
    85
    Posts
    420

    Re: AWD conversion

    Off topic, they put a sts4 setup in a 69 camaro, I have to find the link but sorry I couldnt help on the subject

  8. #7
    The Raven's Avatar
    The Raven is offline Cadillac Owners Enthusiast
    Join Date
    Apr 2010
    Location
    Fleetwood, PA
    Age
    33
    Posts
    825

    Re: AWD conversion

    Yeah you would definitely be better off buying an STS4 and putting a turbo on it. You could then swap on the V2 hubs and brakes, and have lots of good wheel options. And then go looking for a V hood and front bumper to complete the look. You would then have an AWD STS that makes more power than the V, and looks just as good. You would likely have to build the transmission also, but i'm sure you could find a shop out there that can do that for you.

  9. #8
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,372
    Quote Originally Posted by 1madstsv
    There was a sts4 for sale a fue years ago that was turboed and was 480-500 hp. That would be the thing to do rather than the other way. But the Audi s7is very nice our rs7 if you have the $$$$.
    I never heard of that....

  10. #9
    TimmyC is offline Cadillac Owners Connoisseur
    Automobile(s): 99 SLS and Turbo 07 STS-V-Now back to Supercharged
    Join Date
    Feb 2009
    Location
    1/2 hr S of Grand Rapids, MI
    Age
    34
    Posts
    1,427

    Re: AWD conversion

    I saw that turbo awd when it was for sale. The setup was not to my liking and there is/was no way to tune the 05 and 06 cars so they had a meth kit for the extra fuel.

    The V rear gear is 3.23 so that would work if there is clearance for the front shaft.

  11. #10
    Fierofiend is offline Cadillac Owners Fanatic
    Automobile(s): 2008 STS-V
    Join Date
    Feb 2012
    Location
    Charlotte, NC
    Posts
    241

    Re: AWD conversion

    Car and Driver mentioned that the engine was lowered in the V, not sure if that would reduce space for the front end.

  12. #11
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,372

    Re: AWD conversion

    Madtuner provides mail order tuning for the 05-06 ECMs now

  13. #12
    JeffB13 is offline Cadillac Owners Member
    Automobile(s): 2007 STS-V
    Join Date
    Apr 2011
    Location
    Gig Harbor, WA
    Posts
    24

    Re: AWD conversion

    Quote Originally Posted by EChas3 View Post
    The differences are many.

    The AWD transmission tunnel protrudes further into the passenger footwell. The front shocks are different. The stabilty control is different. The AWD front differential gear is 3.23; what's the V's?

    Thanks for all the replys. I think the stability control is definitely the deal breaker.

    RS7 is out of the question, but the S7 is very very appealing. Maybe I'll hold on to the V till next spring and go for the S7.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting