I dont care for the "Children's"manuals much,they have the wrong pictures for the captions half the time(like showing a TH400 and 208 transfer case adapter in the picture,and it says "manual transmission"!)and sometimes I've noticed they tell you to remove certain things that didnt have to be--I buy the books to save work,not create more!. I like the Motors manuals,Haynes is pretty good,they usually have wiring diagrams,another decent book was Clymer,not sure if they are still in bussiness or not.Nothing beats having an original GM parts counter book or service manual though--you can even find bolt sizes and thread pitch,and grade ratings for whatever you need to bolt together in there,plus awesome exploded diagrams of transfer cases,trannies,etc. /forums/images/graemlins/crazy.gif