The Stovebolt Site Forums The Parking Lot Tons 'o Fun 19.5 wheel lugs

I bought 4 clamp plates today from a shop that sells used medium duty trucks that also includes a truck scrap yard. I got the ones that use a beveled lug nut. While looking at their used trucks I noticed a F550 with 19.5 wheels and no clamp plates, only the flanged lug nuts. The owner had no opinion as to which I should use. Even though I got the clamp plates, I returned to the truck tire shop that mounted my tires and asked the owner which I should use. His observation based on changing a lot of truck tires is that Chevrolets with 16s typically have clamp plates, while 19.5s almost always have the the flanged lug nuts and no clamp plates.

Steve