You can definitely pull the driveshaft out by yourself with just some stands. You can't really mess this up, it is about as straightforward of a job as there is. There is no alignment to the shaft on the tranny end, it can slip into the transmission any which way, the only thing that needs to be aligned is the rear u-joint, and that is a no brainer as if it is not aligned you cannot bolt it in. To remove the shaft you just take out the 4 screws on the 9 inch yoke, remove the u bolts, and then push forward on the driveshaft so that it will fall free from the rear yoke. You then just pull it out from the tranny end and it is on the floor. You then change your u-joints, which is the hardest thing here. After changing the u-joints, you just get under the car and push the driveshaft into the transmission, it just slips in, and then push it back onto the rear yoke, put your u bolts back in and tighten it. It is really a straightforward job. If you put the tranny in neutral, you can slip the driveshaft into in, and then move it around to align it with the rear yoke. There is no way to mess this up...