Rear seat belts on 91 c4 cab

I just returned home with my beautiful new (at least to me) 91 c4 cab, when my wife said, "David, your 7 year old can't ride in the back with just a lap seat belt". So... Does anyone know of a 3 point kit or a harness system that can be installed in the back seat of my Cab? Help... no family trips 'till I figure this out.

Thanks.

David Sherman
Dsherman@absolutecoatings.com

[PrettySlick]

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