I bought a set of 4 stock 1990 Ford 8 lug rims back in the early 90's for 30 bucks at a yard sale,the guy had an F-250 4x4 and his wife had bought him 4 new fancy rims for Xmas..
I ran those on my '77 GMC K2500 a long time,the center holes were not hub centric as far as butting against the axle flange,but I never had any issues,and most aftermarket rims have extra large center holes anyway,so they will fit more vehicles..
I liked the fact my GM hub caps fit the Ford rims ok,I did use the
1-1/6" Ford lug nuts though,because my GM ones looked like they might pull through the rim holes,but I did use the GM ones once for awhile with no troubles..the taper is larger on the Ford lug nuts,and I liked the meatier hex,less likely to round off..
I think the Ford rims are a bit wider than the GM ones,I have run one or two Ford ones with the GM's and noticed no weird handling or anything..I prefer to have all 4 rims identical however..
I still have those rims,but have since gotten 4 more GM 8 lug 16" rims,so they are not being used at the moment..they were a dull gray color when I got them and that oem paint is still holding up pretty well,despite them being out to the weather most of the time I've had them..I painted the back side of all my rims with aluminum rustoleum,it seems to ward off rust longer than anything else I have used...looks decent too..