Original Balland trunnion u -joint

Pishta is right: you don't need to take apart the ball & trunnion U-joint to pull the engine and trans. Just remove the four nuts holding the front U-joint housing to the transmission output flange and lower the driveshaft. Depending on the condition of the B&T front joint -- most are quite worn at this late date -- you may want to consider, now or later, converting to a conventional front U-joint.