I just finished truck shopping. I drove the chevy 6.0 and was not very impressed with how sluggish it felt. We decided to go diesel because we are looking at trading for an 11000 lb TT. We debated between the ram CTD and the silverado duramax. Went with the duramax but both were a nice drive and a good engine. I think at 9000 lbs you should be fine with either the ram or the chevy. I would pay reAl close attention to all weights on both vehicles (payload on tire loading sticker, hitch capacity, gvwr and gcwr). This Actually dictated what we got as the short bed and long bed chevy trucks did not have the same hitch capacity.
