A guy here drive like 20 miles on a broken crankshaft

If you inspect chain out a double roller on it

 

lol... that's exactly the same thing that happened to my truck... the guy that ownd it drove down to the my dads shop, and asked my dad if he wanted the truck, the guy said he didn't want to sell it to anyone because he thought it was gonna blow up, because the noise from the hb ... just the rubber ring in the hb fell out... so dad said if i did the wrench work the truck was mine... all it needed was a new hb and a water pump...3hrs later ... and it ran great... even the ac worked for a 94...