I have two sets of 1967 seat belts. One has tags that read: "THIS BELT CONFORMS TO SAE J4C AND FERERAL MOTOR VEHICLE SAFETY STANDARDS". The other set has tags that read: "THIS BELT MEETS ALL REQUIREMENTS OF SAE SPEC J-4K AND FERERAL SPEC". Is one more correct for a 1967 March car?
Also, one set has the number "3187" imprinted under the IMPORTANT instruction box on the backside of the buckle and the other set has the number "4352". What is the significants of these numbers?
Also, one set has the number "3187" imprinted under the IMPORTANT instruction box on the backside of the buckle and the other set has the number "4352". What is the significants of these numbers?
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