how to tell a 1ss from a 3ss
 

I am looking at another tbss soon. How can you tell a 1ss from a 3ss?

3ss has leather/heated seats. That's the biggest difference.

Old post, I know.

^^What he said, plus The 1SS doesn't have a DIC (driver info center). LMAO. Couldn't resist.

No DICk, no sunroof, sometimes only w/ cloth, no nav or backup, heated seats, steering wheel controls, rear screen sometimes, cargo net/luggage carrier sometimes, mirror controls (i think), adjustable pedals, and thats all I can think of.

You could find one out there like mine that is a 1 ss but with leather, thats how I got mine for about 28,500 brand new in 2008. If you do find a 1ss just swap out with katzkin and call it a day.

True. I really like kat skinz seat covers. U can get the heated seat option and trust me. Its worth the $$$

So at which level does the drivetrain change from awd to 2wd cuz I'm looking to get in a Tbss soon but don't know how to notice if the truck has 2 or awd?

just look to see if there is axles on the front wheels.