Looking at selling my 04 F250 ccsb 4x4 bulletproofed 6.0L. 133k Miles. Not sure if I should keep it or Sell and buy a new one. How long will this motor last? Its been bulletproofed since 114k. Is it worth keeping this truck? It runs great and has no issuses. I want a New Cummins, but enjoy the fact I know this truck already gets great MPG without deletes. My main concern is how much longer will this thing last. Am I on borrowed time? Thinking I should have just done a Cummins Swap now. Opinions?