I have a 2002 with 140,000 miles on it. It looks like parts are getting harder to come by. Has any one replaced their motor and transmission with something not original? Back in the day we swapped quiet a few engines into different cars. I had a 1973 Chevy P/U that I put a 455 Pontiac motor in made a nice ride. A small block Ford or Chevy LS6 would make a nice swap. Just checking if any one had been playing around, looking for ideas.