you dont even need a vice or a press. i have had to change out 3 of them in a week once and all were either on the trail or the road. its really easy and only takes about 10 minutes. all you need is a hammer (i used a crescent wrench as a substitute since i dident have a hammer with me), a socket, and pliers. to remove the driveshaft you unbolt the straps holding it to the rear axle and then just pull the driveshaft out from the transfer case. you then need to take the c-clips out then you place the socket over the end of the u-joint and pound the cap out the other side. once you can get your pliers around the cap of the u-joint that is exposed just pull it out with the pliers. do the same for the one on the other side.
putting the new one in is pretty much just doing the opposite of taking it out. just remember to put some grease in the caps before you put it all back together.
don't bother spending money on a press or renting any tools if you don't need to. all you need is a hammer, a socket, and pliers.
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