These are just the wheels, sold in sets of 4, with the proper bushings installed. In case you would like to have different sizes for different uses. These are specific to the jack you are using them on.
-1.5 ton - only have two top hats, with a space in the middle of wheel
-2 ton - has extra bushing in middle, to make solid setup
2.5 & 3 ton - has front wheels two with larger bushings, rear wheels are 2 ton style
-We are also offering 4" wheels here too. This is an option that we have, but haven't made it available on the regular kits yet.