VIN starts with a 3 (3FJ40~18104) making it 1963 production date so it could very well be a early 64 model. Tail lights are for a 64. The tub look very clean for cruiser almost fifty years old. Like as been mentioned only a few would every know if you updated the steering box to the 68 thru 72 model. Those that did know would also know the engine isn't correct even if you put in a F135, unless you could find the correct matching number block which has probably been melted down by know. I would change that steering might even thing about installing mini truck power steering and 2F. In the long run it wouldn't be worth any less and will be a nicer rig to drive.
I do find it intersting you have posts for the shifters coming out the side of the transmission and not a top plate like the one in the picture cjgoode posted. As long as I can remember that was always thought of as a mid 63 change. Come to think of it while it's a 63 production date 3FJ40~18104 seem low for 64. I know Dean and a few other have 63 production 64s. Numbers close? Angled tool box under the seat 63. Latches for windshield and lower B pillars 64.

I do find it intersting you have posts for the shifters coming out the side of the transmission and not a top plate like the one in the picture cjgoode posted. As long as I can remember that was always thought of as a mid 63 change. Come to think of it while it's a 63 production date 3FJ40~18104 seem low for 64. I know Dean and a few other have 63 production 64s. Numbers close? Angled tool box under the seat 63. Latches for windshield and lower B pillars 64.

