I'm installing a LSA and 6l90 package out of a CTS-V.
I can't find much on the trans. What drive shaft can be installed to make this work on a 12 bolt rear. What parts need to be changed to make it work? Anyone that may have done this swap, I would appreciate any help you may have.

 

I'm pretty sure you're going to need to have a custom driveshaft made for that combination. You'll probably work harder trying to find someone who knows exactly what you need that simply measuring for it yourself.

Contact a custom driveshaft shop. They'll tell you exactly what measurements you need to take, and give you options -- what material, what kind of U-joints, etc.

Good luck! That will be a fun combination.

Also, if you're not familiar with Mark Stielow's Red Devil project, I strongly suggest you google it.

 

I don't know how far down the road you are with gathering parts for the install.....but hopefully, this'll help --->> MuscleRods 67-69 Camaro LS Conversion Kit

KW

 

I have gotten everything but the driveshaft at this point. Once everything is together, I am taking it to a driveshaft shop in Charlotte and they'll take it from there.
This is a lot more expensive than I originally planned that's for sure.