15", 16" & 17.5" wheels were available in the 6 lug x 5.5" pattern, per the CHEVROLET Truck Data Book of November 1, 1965. It does not list any 6 x 5.5 in a 16.5" dia.

Tony Smith
4-5-6 Chevy Trucks
501 Scott Avenue
Kansas City, KS 66105
913-207-7789
[email protected]
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