[FiftyTwo]

Switching the outside handles isn't going to be very easy.

The doors are actually different. '47-'51 use a single hole to mount the outside door handle, while '52 on up use two holes.

The inside door latch is also different. '47-'51 the rod on the door handle trips the door latch when you turn it down, '52 on up the latch is tripped by pushing the button on the door handle. Two totally different ways of doing the same thing.

Lastly, the catch on the cab post is also different between '47-'51 and '52 on up.

With that said, anything can be accomplished with a little creative cutting and welding. You could just shave the door handles, install bear claw latches and some solenoids and be done.

Good Luck.