This may help you with the bushing replacement.
LinkAlso, the Filling Station has the bushing puller
Puller, but you'd need the driveshaft in place to use it. A slide hammer puller should get the front bushing out (maybe with the application of some heat on the outside of the tube), then you can install an "okie bushing" that's a combo front and rear bushing and seal.
Okie Bushing The okie bushing installs with the front bushing removed, but the rear one in place.
Your truck seems to have had a hard life, but looks to be complete. Stop by the Paint and Body shop Forum when you get to that point (or are you going to leave the original patina and rough edges?) Either way, Nice truck.
