Howdy Martin
Congrats. on the purchase of a 1962 short step side. Hope that you have lots of fun with it.
As said by others the 62 was the last year of the Torsion bar suspension. They have a wider frame and therefore different cab mount locations.
The grill went to single 7in headlamps, the interior paint color is lighter than 60/61.
The Stovebolt 235 / 261 engines were used for the last year. (early 63 4x4 did still get them) Light trucks had hydraulic clutch actuation. (heavy trucks kept it for a few more years.)
The side trim and any two tone paint was new in 62 and was used up to the end of style in 66. (Chevys only not GMC)
Enjoy your truck and post photos if you can for us to admire.
Howie also with a 62