when putting the back sprocket on it does not sit flat on the hub because the bearing cover is all most the same diameter of the hole in the sprocket I should leave the mechanics to the gods at spookey tooth but needed a winter project. Everything else is on the bike I am in need of some bicycle speed thank u ....

Hi TrooperDave3,

Did you have a chance to see the installation manual?

This page right here shows the mounting procedure for coaster brake wheels.
http://www.spookytoothcycles.com/content/view/111/127/1/3/

...And if you haven't gone through the quick, free registration, that link is here:
http://www.spookytoothcycles.com/component/option,com_registration/task,register/

But, the answer unfortunately is that the dust cap does need to be thrown away. Generally rear wheels can be about the hardest part of an engine installation.

Cheers, Roland

I took all mine off and then ground the flange off of them so I at least had a cover, though not as good a cover as they had when they were stock.

Hold the cover at a 45 degree angle and grind off the "lip" then test fit it. Keep turning it and grinding gently until it fits.