Mopar website extra-ordinary!

http://www.mymopar.com/tools.htm

VIN Decoding

Production Numbers

Electrical Specifications
Mopar Wiring Diagrams
Wiring diagrams for all Mopar cars from 1955 thru 1976 and some various trucks.
Mopar Battery Guide 1966-1974

Casting Numbers

Fender Tag/Build Sheet Decoding
An excellent downloadable fender tag decoder for 1969-1974 Mopar vehicles. (454 kb)

Chassis & Drivetrain Specifications