What seats and tracks fit what years?

[Rusty one]

Have a 63 Fleetside and looking at options for the front bench seat. I have a seat which the PO made work. Not sure of the what year or make the bench came from. Also looks like the seat bracket has been welded metal stock on the brackets to make them fit in the original holes in the cab.
I'd like to get either the stock seat tracks for my year of truck, or find out what years and makes of bench seats fit ,including the tracks that fit a 63 Fleetside.
Anyone with info and or pics?
Thankyou