Jeep CJ-7

So Here is my problem... I have a 1985 Jeep CJ-7 with the inline 6 4.2... About 2 weeks ago I developed a vibration when accelerating in 1st and

3rd around 2500-3000 RPM. I could not figure it out!! I thought i might have had an alignment problem or something to do with recently greased joints...Well today My driveshaft dropped from the rear-end side. The bolts in the connector snapped off. I am thinking either from the harmonic balancer or maybe one bolt broke and then the vibrations broke the other. Well I decided I would just pull the driveshaft, throw it into 4 wheel drive and limp it home like a FWD. Well first I could not get the driveshaft off...could not pull it from the transmission, and could not loosen the bolts. I decided to try and tie it up so it would spin freely without hurting anything else(yeah ghetto I know). But when I put it into 4WD I could shift through the gears without hitting the clutch, and the car would not move...?? Am i missing something? I thought for sure this would work. I also know that my 4WD works. Did I burn out my clutch somehow too? Any ideas here...my poor baby is sitting on the highway...I'd rather tow it to my house than a mechanic!! Thanks for the help Jeremy