Custom adapter shafts?
This one was made from a 4L60E slip yoke, with the end milled off, then the inside bored to an interference fit then TIG welded.
The end result after a little fight foot action with the new 6.0...

On a side note, the engine runs like a top, apparently as the old 5.3 never broke the damn shaft!

Martin
I have actually installed their CV style axle shafts in someones Jeep. Not sure if they can do internal splines, but will call them tomorrow for sure!
Cheers
Martin





