Ok so i pulled the motor on a 1983 mustang gt to replaice the oil pump well i went to put the motor and tranny back in and i cant get the drive shaft back in for some reason but i need it done asap someone with skills please help!! TY
these shafts have a spline design and so must be aligned VERY well for the shaft to fit.
Try turning the drive shaft as you attempt to insert it into the trans. This process is best done with two people one to control the engine and one to handle the drive shaft.