hey i just got a 89 ea he jsut put a change over 3.9 in it it's a collum shift auto it was going fine one of the best boxes iv'e seen but now theres no drive... in any gear the speedo works normally in gears but i can feel it grabbing and it will move like an inch then loose it again im thinking when he done the change over he might have forgotten to tighten something up or put something back.. any ideas?

I don't know, but you could start by checking that the column shift operates the control lever on the gearbox properly.