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12-29-07, 03:14 AM
| | Cadillac Owners Fanatic  | | Join Date: Mar 2005 Location: North Pole, AK | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
I think one of the downfalls of the diff is how little fluid it holds. Any extra capacity would be an improvement. |
12-29-07, 08:13 PM
|  | Cadillac Owners Fanatic Cadillac(s): Ext and CTS-V | | Join Date: Jul 2005 Location: Northern New Jersey | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Bump, for any updates? |
12-29-07, 10:40 PM
|  | CTS  ader Cadillac(s): 2006 CTS 3.6 // 2005 CTS-V | | Join Date: Dec 2006 Location: an I-294 traffic jam Age: 35 | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
I think Reed is actually working for a living these days, and travelling IIRC
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12-29-07, 11:17 PM
| | Cadillac Owners Member Cadillac(s): Cadillac | | | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
The toughest part is now done!!!! everything came out very good!!! (so far)
the oil gallies were a bitch!!! 5.722in. deep with a 1/2" dia. bullnose endmill!!!
took about 9 hrs. to complete. tomorow the pinion bore and pinion support bore and 7 m8 x 1.25 taps and were good to go!!!!
have a great weekend and HAPPY NEW YEAR!!!! pic_1.JPG pic_2.JPG pic_3.JPG pic_4.JPG |
12-29-07, 11:38 PM
| | Cadillac Owners Fanatic Cadillac(s): Cadillac Escalade, CTS-V | | | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
I don't know anything about your business but I cannot let it go without saying that I have watched this block of metal become what appears to be a beautiful work of art  I believe that even at this stage congratulations are in order  Quote:
Originally Posted by Custom Gear  The toughest part is now done!!!! everything came out very good!!! (so far)
the oil gallies were a bitch!!! 5.722in. deep with a 1/2" dia. bullnose endmill!!!
took about 9 hrs. to complete. tomorow the pinion bore and pinion support bore and 7 m8 x 1.25 taps and were good to go!!!!
have a great weekend and HAPPY NEW YEAR!!!! Attachment 38473 Attachment 38474 Attachment 38475 Attachment 38476 | |
12-30-07, 12:48 AM
|  | Piaggio Pilot | | Join Date: Apr 2005 Location: Scottsdale, Arizona | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Quote: |
I believe that even at this stage congratulations are in order
|  |
12-30-07, 02:03 AM
|  | Nucking Car Fut "If cool, must own" Cadillac(s): 2009 CTS-V, 60 Coupe Deville | | Join Date: Oct 2007 Location: Northeast Ohio hammer down Age: 41 | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
I am so psyched at this point! Just seeing this not only become a reality, but as it was mentioned, become A TRUE PIECE OF ART! Custom has gone yet another entire day of his own time during a holiday break for this project. 
I am now already watching the weather here in Cleveland to see my opportunity for test miles. This time of year here is really messy with salty roads or usually snowing alot. |
12-30-07, 10:29 AM
| | Cadillac Owners Fanatic Cadillac(s): 2004 CTS-V | | Join Date: Nov 2005 Location: Austin, TX | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Congrats indeed!!! How much does it weigh compared to the factory housing? Are u going to heat treat it? I may postpone the wife's liposuction to buy one. This is the gift that will keep on giving whereas the liposuction is like trimming the fat off a bad steak that bitches at u while it lies steaming on a plate. :-) |
12-30-07, 11:01 AM
| | Piaggio Pilot | | Join Date: Apr 2005 Location: Scottsdale, Arizona | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
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12-30-07, 11:27 AM
| | Nucking Car Fut "If cool, must own" Cadillac(s): 2009 CTS-V, 60 Coupe Deville | | Join Date: Oct 2007 Location: Northeast Ohio hammer down Age: 41 | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Regarding liposuction. It reminds me of my favorite sayings: "You can't polish a turd". Think of the V as much like the wife, it runs really good and it would be nice to drive it every day, but the rear end has to be quality. 
As for how much it weighs. It is appearing to be lighter than we predicted. Not done cutting metal off yet and drilling, but at least 400 lbs. have been removed of of the near 530 lb. block! Heat treating is definatelty being considered, but probably not on the first one though. |
12-30-07, 12:18 PM
| | Cadillac Owners Fanatic Cadillac(s): 2004 CTS-V | | Join Date: Nov 2005 Location: Austin, TX | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
This may be a really dumb question but you have to consider that I know nothing about differentials. Is it possible to put Ford 9" guts inside of a custom case that would fit the V's external mounting points? |
12-30-07, 12:37 PM
| | Nucking Car Fut "If cool, must own" Cadillac(s): 2009 CTS-V, 60 Coupe Deville | | Join Date: Oct 2007 Location: Northeast Ohio hammer down Age: 41 | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Quote:
Originally Posted by VDiddy This may be a really dumb question but you have to consider that I know nothing about differentials. Is it possible to put Ford 9" guts inside of a custom case that would fit the V's external mounting points? | This project is primarily being done to address CASE FAILURE and it's mounting locations. Attempts at hybrid differentials are already out there, and some are still running in cars successfully. This is a different approach. |
12-30-07, 12:53 PM
| | Cadillac Owners Fanatic Cadillac(s): 2004 CTS-V | | Join Date: Nov 2005 Location: Austin, TX | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
I guess that brings up another question, do most people break their cases when they're talking about 'blowing up' their rearends or is it the internals that go? |
12-30-07, 02:13 PM
| | Cadillac Owners Fanatic Cadillac(s): Ext and CTS-V | | Join Date: Jul 2005 Location: Northern New Jersey | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
What is the ETA of the first billet CTS-V rears completion?  |
12-30-07, 03:04 PM
|  | Cadillac Owners Master Cadillac(s): '05 CTS-V | | Join Date: Jul 2004 Location: Elkridge, MD Age: 37 | | | Re: This block of steel is about to become the first ever CTS-V Billet Diff housing!!
Quote:
Originally Posted by VDiddy This may be a really dumb question but you have to consider that I know nothing about differentials. Is it possible to put Ford 9" guts inside of a custom case that would fit the V's external mounting points? | Quote:
Originally Posted by VDiddy I guess that brings up another question, do most people break their cases when they're talking about 'blowing up' their rearends or is it the internals that go? | The catistrophic failures have mostly (?all?) been case fractures. I don't recall seeing any pics of busted teeth on the ring or pinion. The 'howl/whine' domes from the defection of the weak case, the fact that the whole thing moves around so much due to the bushings attaching it to the cradle, and then fially by the suspension geometry and poor bushings connecting the cradle to the frame of the car (whihc induces wheelhop, which puts the @ss smack on the DIFF's).
Both Quaife and Torsen make replacement differential inards, which should be stronger than stock. I'm not sure this would be needed in most peoples application, as I think the bilet case would work pretty weel with the stock bits inside.
I guess the ultimate setup would be the billet case, with Quaife/Torsen internals, replacement differential bushings (come on UUC!!!), replacing as many of the softer bushings in the rest of the suspension (GM Racing Upper sway bars with hardened bushings, BMR toe and trailing arms), doing something about the cradle bushings (they have to be burned out so no one has really done a swap of those that I'm aware of), or installing some form of cradle brace (a la BMR AWHK, or KARS Cradle kit). You'd then need to beef up the half shafts (to at least the bigger '06+ ones). I would HOPE that setup would be enough to shift what breaks in the drive line somewhere else.
Watching this and waiting (and hoping it works).
-Chris
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