If it is a four speed,you may have to remove the shifter.
My truck (49 chevy 216) required me to remove shifter and jack cab slightly to remove.
Now I am preparing to reinstall and I really wish they had made that crossmember removable like the rear.
Hate to unbolt cab again,afraid of twisting,but the tranny without the shifter is 12 inches and the opening is 10 inches.