I agree with Jerry, it sounds a little sketchy to me. You are also going to find out they wont't seat correctly on the rear axle hubs as well. Likely the wheels you are looking at are for an early Datsun/Toyota or some other import truck which uses a 6 lug pattern. I would look for the correct wheels that fit the truck.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine