Not sure, but if you have a rear transmission support.
You will have to unbolt that from the transmission.
Kind of looks like this.
CLICK HERE Torque tube cross section 1947 Chevrolet Truck Shop Manual (Scroll down) "Truck only" Engine removal; This will apply to your truck also.
Note: Step 19.(a) Just unbolt rear transmission support from the transmission.
Skip Step 19.(b) Rear yoke and U-joint ball housing will slide off the torque tube, when you pull the engine and transmission out.
When the U-joint ball housing clears the end of the torque tube.
You will hear a popping sound like you just opened a bottle of champagne.
Just kidding.
1941 Chevrolet Shop Manual for Passenger Cars and Trucks OLD ONLINE CHEVY MANUALS 
