I just got a new to me tv. It is a 2004 chevy 2500HD LS Duramax (LLY engine) Crew Cab with 155000 miles on her and I only paid $6000 (I know, I know I stole it. she's in awesome condition just needs a set of tires). I can't wait to try it with the Hi-Lo in a couple of weeks. I still have my 07 GMC 1500 and it did a good job towing but the 2500HD should pull my 290B so much better.