bnw said:
What about the pre-60000 body?
Hard to say. At the time of the bulletin, states such as Connecticut and New York were requiring front belts or, at least in New York's case, front seat belt mountings:
<span style="font-style: italic">NY Vehicle & Traffic Code:
§ 383. Safety belts and anchorage assemblies. 1....
2. Anchorage assemblies. No motor vehicle shall be sold or registered
in this state unless such motor vehicle is equipped with safety belt
assembly anchorages conforming to standards established by the
commissioner for each safety belt required in such motor vehicle. In
addition, no motor vehicle manufactured or assembled after June
thirtieth, nineteen hundred sixty-two shall be sold or registered in
this state unless such motor vehicle is equipped with safety belt
assembly anchorages conforming to standards established by the
commissioner for two safety belts for the front seat of such vehicle.</span>