I'll take a shot at this, I'm guessing you're wanting to match your Trailer Wheels to your Truck, so the only way to do that would be to replace/redrill the axles so that you can use a GM 5x5 Bolt Pattern..... Otherwise your stuck with picking up a set on 5X5.5 for a Ford/Dodge Pickup, if you just want spare Steels.... Another Option would be to pick up a set of Aftermarket Rims for your Truck, then pick up a set of matching rims in 5x5.5 for the trailer, but that's the expensive option(Unless you go for the Cheap Steel Wagon Wheels).......