SAE Standards Works
Truck and Bus Total Vehicle Steering Committee
J701 - Truck Tractor Semitrailer Interchange Coupling Dimensions
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Truck Tractor Semitrailer Interchange Coupling Dimensions
The information in this SAE Information Report is the result of studies by Automobile Manufacturers Association, American Trucking Association, and Truck Trailer Manufacturers Association, to achieve interchangeability of equipment which will comply with the legal dimension limitation for the majority of states and yet permit increased loading space within these dimensions. This in no way supersedes other information in the SAE Handbook on this subject. It will, in some cases, require more care in application