Kingquad Driveshaft Issue
 

I have a 450 kingquad that I am having drive problems. I think it's in the driveshaft. I have the rearend out of it but can't see any issues. How do I get driveshaft out of transmission?
Thank you.

I have only ever done them with rear diff in position and you just pull. If tight I put the hub back on with the nut only on about 5 threads and use the hub as a slide hammer. How you could get the rear end out with drive shafts in position, I don't know as I even had to take the drain plug out to get the diff out between the frame tubes.

The drive shaft from the transmission to the rearend, not the drive axles, I have them removed.

Ah, we call that a prop shaft in the UK. You have started taking the bike to pieces before diagnosing the fault. Had you lifted the rear end off the ground, stuck it in 4WD and turned the rear wheel by hand you could have watched the prop shaft to see if it revolves, if it does, including the UJ, the splines into the back of the engine must have failed, if the prop shaft doesn't turn, it is a problem in the diff. To get the whole thing out you have to remove the UJ spider, which gets the main part of the shaft off, then undo the nut holding the half yoke onto the engine. The shaft should just pull out of it's yoke but those spring rings, as on the CV shafts, can get a grip.