This guide was prepared as a result of the National Highway Traffic Safety Administration's request to General Motors to make additional loading information available to owners of pre-1970 pickup trucks. The book includes worksheets to figure out how much a particular pickup should be loaded with, based on the tonnage rating, tires, springs, wheelbase, etc. Pages and pages of data round out the information. The book specified that only copy was sent to each dealer. Buy now to own this rare original manual.
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