drive shaft gaiter is easy ,provided as kenny says ,you have the drive shaft perfectly level.
i put one on peepingtoms rt ,before i sold it ,as i put it on the driveshaft wasnt level and i was there for about 5-10 mins trying to get it on ,i did level the drive shaft first ,but when i stepped back to look it wasnt perfectly level ,so another piece of wood under the wheel ,and then it just slid on .
make sure its perfectly level before you start,and you will have no problems .