In the last 3 years truck has gotten a new head, turbo, radiator, injector wiring harness, all springs and front end parts also replaced air compressor. A/C developed a leak over winter most all a/c components are also new. Truck has a older factory original 13 double over drive with a 3:08 gear. I only ran new and used trailers so never had weight I singled out front drive axle truck was tenn dot inspected 3-4 months ago worked everyday up until I parked it on June 08 2015. If you have any questions, you can contact my husband at 317-225-0550