[return to the red]

So I'm, ordering a new Sierra and I've been told by some that if i'm not pulling a heavy trailer then I should get 373 gears but the guys at the dealership tell me that besides reving higher there isn't a noticable difference between that and the 410

My brother-in-law says get the 373 along with some contractors, anybody have any input on this topic? Keep in mind the truck is an '08 Sierra with the active fuel management system