Yes it is possible but you will need to make a bracket.

Measure first to make sure your cab is wide enough, as trucks have gotten wider over the years.

Here is a picture of a set of Silverado seats mounted in a 59 GMC.

[img]http://home.rochester.rr.com/stphillips/59GMC/Seats.jpg[/img]


Blaine Dumkee
59 GMC 9314
Fort Smith NT
www.flickr.com/photos/northerngmc/