I have ben working with The DriveShaft Shop for about 15 years on various projects. They were the ones that made the custom axles for my RX7 when installed a Ford Cobra Mustang rear diff in it. They were also the ones that made the single CV driveshaft for my GTO back in 2013 and also the dual CV driveshaft in the Cougar.
This time around they will be building a dual CV driveshaft for the GTO, but with a twist. They have some new, super strong CVs that they want to use on this project. The front slip yoke is already configured for it, but the rear needs an adapter, because the CV pinion yoke was made for the smaller CV. That said, they designed an adapter for me and sent me a 3D printed prototype for test fitting.
We live in truly amazing times. As Vic likes to say "That's some Buck Rogers S**t!"
Andrew