327amc,

How about providing pictures of the wheels in question???

It almost sounds like your are describing later 6-lug "Rallye" style or standard style truck wheels that have the 8" width you mentioned.

Check out this older conversation on using wider wheels as it has a whole bunch of good info that may answer your question.

Dan

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
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US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)