The 727 is the big brother version of the A904 3 speed. It won't take much messing around to install the auto shift assembly in the truck but expect to take a grinder to the floor to relocate it. I would cut the shifter section of the trans tunnel from the donor vehicle and graft it into the truck. It'll look way better than a hatchet and drill job and you'll be able to seal it up nicely. A B&M Megashifter would look cool in the cab of a D50