I went out and crawled under my truck for a look, because that driveshaft looked to have way too much spline showing,
but mine looks just like it! I've had that truck up to 75 MPH with smooth drive train results...except for deep secondary roar and a sweet exhaust note. That was many years ago. I don't want to try that with this new shell that is 10" taller. I'd run out of gas in a couple of blocks.