I replaced all the lenses on the back of my ultra classic to smoke lenses and when put everything back together they didn't work. All other lights work

 

SOUNDS LIKE A GROUND, not knowing what all you took apart, i know when i relocated my front and raer light on my 05 fxst everything work except my front left turn signal and spent two days taking it apart and putting it back together to find out from my brother that my left rear light was grounding out, fixed that and all was well again

 

Hi Alan and welcome to HDF from the UK. We get a steady trickle of new members who have done work on their bike and found it doesn't work! I suggest you carefully go over everything you've done and check that the wiring is still sound and connectors properly connected. Each of the rear lights connects into the central fender light unit, where the wiring goes forward into the main harness. You may have a false ground under the fender.