Is there a way/site where I can enter my my VIN # and get some type of printout showing precise specs for my rig when it was originally sold? Eg. gear ratios, axle type, etc. ?? 

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I don't know of one that will give you real specifics like what options it came with, but you can search by your vin for parts here: ToyoDIY.com
Though Toyota corporate made them take all the pictures down...
dealer?