Caterpillar 660B Scrapers Repowered With Detroit Diesels -- Detailed Walk-Around

On my trip to Perris, California on September 12th, 2022, I spotted a group of very rare Caterpillar 660B scrapers sitting on the Ritchie Brothers Auctioneers' lot and was lucky enough to get access to shoot some videos of them. These first 2 were repowered with 600-horsepower Series-60 Detroit Diesels. I'm not sure what years the scrapers were built, most likely the 1970's, but the Detroit engines under the hoods had 2003 dates of manufacture, so I presume the conversion took place in the 2003–2004-time frame. One of the employees of Ritchie Bros, who coincidentally was already a subscriber of mine 👍, said that these units had already been sold. I don't know to whom or where, but I felt very lucky to be able to get such close access to some scrapers that I thought I'd never see again. I hope they've got more working years ahead of them and not a date with the torch. Please 👍. Thank you, enjoy.