I guessing you have removed the driveshaft/torque tube and all mounts. Make sure the transmission in in neutral and shake it up and down and side to side and it should come out. Is the input shaft rusted? You may need to spray it with PB Blaster or Kroil and let it sit for a couple of hours. The input shaft splines may be hanging up on the clutch splines.
Hope this helps.

Tim


"Pay attention to the details! It ALWAYS pays off."

1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle