I owned a 01 2500 hd with a 6.0 and hated it. When I came across a 02 2500 hd with an 8.1 I jumped on it. I have had the truck for 3 years now and love it. I put a 6" lift with 35" tires and have pulled every thing from a 29 fountain to a 36 outlaw with no problem but about 6-8mpgs. I put a crank sensor in it last year ($40 part but you will need a case of beer after you are done).