4bt has been in a Jeep Wrangler for 3 years and running fine. Today I took it out for a drive and it got a louder and louder knock and tick in the motor. I should have trailered it home but instead tried to limp it home on back roads and didn't make it very far before it finally gave out. The motor was still spinning with a loud grinding noise like crazy until it came to a stop but would not make power. Once it came to a stop it died. The starter will spin the motor and it sounds like it's kind of firing off but gears are grinding noise coming out of the motor and does not start. The motor is mated to a 47rh trans. It has a denny t fuel pin and hx30 turbo. Other than that it is stock. When it was making noise oil level was fine, oil pressure was fine, and Temps were normal. No external damage on the block and no oil leaking. Not sure where to start checking first. Any help is greatly appreciated.