I'm in the early stages of my shop truck build and am swapping in some modern (2007) air ride, air brake components. As I removed tandem rears and am installing a single axle, this will require a longer driveshaft, using a Spicer 1610 up front to mate to the original auxilliary trans, and a Spicer SPL90 out back to mate to the Peterbilt bus rear. My universal joint research online has led me to
Action Machine in South Bend IN. Has anyone use their driveshaft fabrication service to provide any feedback? Thanks in advance. Also, here's a build thread on the shop truck. Sorry for the OT brand, John tells me I need to ride in the back..
Shop truck build 
