We supplied Dr Anderson a driveshaft and a stock C6 tailshaft for his rare Mustang. He needed a stock length driveshaft and tailshaft so he could use the car when he had the transfer case repaired. It seems the transfer case doesn't hold up well to the CJ’s torque so he wanted a stock setup to let him use the car in 2WD mode when the transfer case is in the shop. I think its one of four prototypes made in England by a 4WD conversion company back in 1969. It's originally a 428 CJ with an automatic transmission. They never made it into production.