[El Dorado Jim]

the wheels you want are 8 on 6.5 " any wheels from dodge and chevy will work, ford before 1998 will work ford changed patterns to a metric measurement...., they are cheap on craigslist, I have gotten a couple sets of aluminum 8" x 16" for less than $200.00 for the set.....if you want steel rims, like 72 tigger said wheels from a Ford E250 or E350 are 7" wide and will fit your truck , make sure they are pre 98.I have a set on my 74K20..measure the lug holes center to center across from each other and you will see what I'm talking about with the 6 1/2 " spacing.....all of the wheels with that spacing will fit your truck, the center holes may be bigger than what you have but that won't matter, the lugs will center your wheels