mcateefam wrote:
I am asking is there a difference in towing between the two 5er's.
I wouldn't think so. The Montana is a little heavier (1600 lbs) and a little higher (3"), but not significantly. The length shouldn't matter in towing except when pulling away from the fuel pump - don't turn quick and "slap" your back corner! That would be more of a problem in the High Country because of the length. Make your decision based on the floor plan and other features.
Your biggest difference will be going from a TT to a fiver.
Good truck, I love mine.