Cadillac CTS-V Forum banner
1 - 13 of 13 Posts

· Premium Member
Joined
·
62 Posts
GM RPO Codes – Factory Identification Labels and Interpretation
RPO CodeDescriptionRatio
GU5Axle Rear3.23
 
  • Like
Reactions: Rubber Duck

· Premium Member
Fun pedal, Few doors
Joined
·
3,440 Posts
Pretty sure they are. And you could be 100% sure by popping the cover off the Diff and checking for clutches. Or if there's a Part Number on the casting someplace, you could look that up on-line.
This is not a thing. The Gen2 V diffs don't have rear covers. To open one, you have to entirely remove it from the car and remove the side cover (split it, basically)
here’s one partially removed
 

· Premium Member
Fun pedal, Few doors
Joined
·
3,440 Posts
Yes, the V2 diff is a very stout beast and the perfect counterpoint to the exploding V1 units.
The only failing of the V2 design (IMHO) is they made it so extremely compact that its internal volume and fluid capacity is too limited. This leads to overheating and oil breakdown and the wear that turns into noise.

But as far as strength I think it’s as tough as a 9”.


Sent from my iPhone using Tapatalk
 

· Premium Member
Joined
·
5,925 Posts
Yes, the V2 diff is a very stout beast and the perfect counterpoint to the exploding V1 units.
The only failing of the V2 design (IMHO) is they made it so extremely compact that its internal volume and fluid capacity is too limited. This leads to overheating and oil breakdown and the wear that turns into noise.

But as far as strength I think it’s as tough as a 9”.


Sent from my iPhone using Tapatalk
But the axles are not, especially when compared to the Ford 31-Spline Axles.

Cheers
 
  • Like
Reactions: jcs003 and loweredd

· Registered
Joined
·
3 Posts
Pretty sure they are. And you could be 100% sure by popping the cover off the Diff and checking for clutches. Or if there's a Part Number on the casting someplace, you could look that up on-line.
THE CTSV from 16-19 all have. Here is an old timer easy assesment of ANY rear drive axle; With both rear wheels free of the ground; TRANS IN NEUTRAL; spin one rear tire. IF the opposite side tire spins in the same direction YOU HAVE A POSI. IF it spins in the opposite direction, you DO NOT HAVE POSI. I learned this getting vega rear ends in a junk yard. ALSO; If you are lucky enough to have a tag on one of the cover bolts saying to use only "limited slip lubricant.......GOOD LUCK!!!!
 
1 - 13 of 13 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top