Hello fellow 'bolters!!

I have a '57 3100, and the steering box has a lot of play in it. I know they are somewhat adjustable, and I've already tightened it up once, but I have a feeling its time to rebuild or replace.
Question #1. Are the Task Force Truck columns all the same? I found one out of '59 with turn signals that might make a nice upgrade, if it interchanges with the 1957 column.
Question #2. How involved is rebuild steering column? I might rebuild one before installing it in the truck to make sure its good. What wears out typically, and is it replaceable? Any recommendations for good kits?
Thanks guys for "steering" me in the right direction!!
