Actually, I have 3.5" between the rear yoke (U-joint) and the floorpan while car is sitting on jackstands compressed suspension just as if it were sitting on the ground. Pumpkin to floorpan is substantially more. The way the 37 floorpan is designed it has plenty of room for the pumkin but there is no tunnel for the driveline. I took the bumpstops out just to look at distances. Shocks are brand new Napa 94005 gas shocks. The shocks compressed are 10.125", fully extended are 14.625 (per spec sheet). With car on jackstands and suspension compressed at ride level the center to center on shock hoops is 12.5". Both shocks tilt forward at about 30 deg.