So here is my story. I hope you all learn and sell your rocky asap. My cousin owned a rocky, but the engine blew. So I was given a used daihatsu rocky for free, without an engine. I replaced the engine and drove it, but noticed a vibration through the steering column and through the stick shift. I checked out the transmission. Sure enough the Yoke was warped, so I swapped the transmission. About 15,000 miles later I noticed the same damn vibration. At 20,000 miles, the engine blew. The yoke had warped again, on a brand new transmission and a relatively new engine. The crankshaft was bent (it was straight when we did the engine swap). The connecting rod had snapped, the piston had cracked the engine casing and there was a big mess.
Could someone please give me a reasonable explanation of why this 1990 Daihatsu Rocky Fourtrak failed? I have to write a failure analysis report for a professor for my mechanical engineering class. BTW, this type of failure is very very common among Daihatsu Rocky Fourtraks.