I dunno about the diesel into a toy. I think the rules say the type of fuel must have been offered for that year, so you might be in luck (Toyota did make a diesel in the first gens). The diesel, of course, would have to be newer than the truck and the first Gen would have to be a diesel also
. Of course if the Toy was a diesel to begin with then it wouldn't matter what you swapped. Do a little research, maybe give JTR (Jags that Run) in Livermore, they have been making swaps legal in California 4-ever.
