This is how I did mine.
An icecream container lid cut into five rectangular shims (see pic 1). The nut is the left side rear axle bolt used for size comparison with one of the five cush drive segments.
This picture shows a shim fitted against thye wheel web with the cush drive rubber about to fit alonside it.
First picture here shows shims made from icecream container lid with the axle nut as reference size wise and a cush drive segment pair.
Picture shows shim in place.
Picture shows a closeup of shim and cush drive rubber segment.
Picture shows the hub all ready for sprocket carrier to fit back in nice 'n' snug which eliminates drive chain snatch and gives a much sweeter gearchange!!!
"Only ride as fast as your guardian angel can fly" !!!
Order a chinese or any other delivered food! but make sure its delivered in those handy little plastic tubs! I dont think shimming with tinfoil is quite the same.