I have the same problem Jerry... Play in the front drive shaft, so I took it off and was going to rebuild it last weekend. I couldnt find play or damage to u joints or centering ball when I did. All seemed tight. When I put it back on, it was obvious the play was at the joint/splines where the yoke and shaft meet. Dont know if this can be fixed with a longer yoke, or need new shaft. I dont see any damage..
I know he didnt let you answer, but if you have time I would like to hear it.. Mine is loose at the yoke and pinion shaft. Also when I took it apart it looked like one of the splines on the yoke end was double keyed, but the splines on the shaft were all the same. the factory boot and clams still on with no sign of damage. Im assuming this is normal, but I thought the other side would be keyed to this.