I kind of think its the one that was in Calif. Had I known it was a Buda engine, I would have probably disregareded the signs and looked at it, or if it would have been a GMC. Buda engines were were a very heavy duty engine and were purchased by Allis Challmers in the early 50's and marketed under that name until AC went broke. Its an interesting truck that looks like it it was professionally converted. Looks like it even has a 9k steering axle.