See the pictures below to help you choose which caps you need.
Does your hub inset behind the wheel like the picture on the left?
Does your hub outset past the wheel like the picture on the right?
If it looks like the left, your in luck, the Floaters, Both the 2 3/4 or 3 1/4 will fit, depending on the size you needed.
If it looks like the right picture the floating caps will not work without changing your spindles, which is a great upgrade to do anyway.
