Is 3/4 ton enough for a 3665re?

[bafflefinder]

I just traded our 2005 colorado 34' in for a 09 3665re. the Colorado had a rated 1600# hitch weight which set my Dodge 2500 about 1" above the overloads. The new 3665re has a rated 2000# hitch weight. We don't have the washer dryer so that will help. I am installing Airlift bags to help the pickup sit level. The Dodge engine, trans and frame are the same as 1 ton, I worry a little about the axles. Plenty of power with Edge chip. Any thoughts on how the 3/4 ton will handle it. Only two of us and we travel pretty light. Can't add more other than I love my truck and don't want a new payment.

Thanks for comments.