differences in years

Does anybody know the differences between lets say a 92 pickup and a 93 pickup? im trying to find a copy of 93 pickup factory repair manual and have failed to find one for about a year now... im ready to break down and just buy a 90 or 91 book or 4runner book of the same year and i would like to know what would be wrong about the older year books

http://personal.utulsa.edu/~nathan-buchanan/93fsm/

This is the 93 manual.