thanks guys, I found out the machine shop across the street can retube and balance my shaft for about $175.00 (rick d was right on)
BUT after further inspection it appears I might have toasted the rear pinion bearing by driving it with the yokes out of phase
(yes my teeth are still chattering).
Tlc Obsession FYI.........I don't have the measurements but the drivetrain is SBC 283, AA adapter, 78 TLC t-case and 4spd Tranny. From the looks of the shaft welding the P.O. cut about 4" out of the front shaft and grafted it into the rear:rasta:
Please excuse my uneducated ramblings, I'm going to study drive shafts now