Problem with Wilwood brake kit or my car?

Makes me want to scream. I purchased a Wilwood kit for my 68 Dart with 10" drums. Finally got it after waiting about 3 weeks. Problem is the caliper mounting brackets are either drilled from the wrong side or my spindles are on backwards. No matter which way I turn them to get the bolt holes to line up the caliper will be on the front. I know it has to be on the rear side. CAN THE SPINDLES BE PUT ON BACKWARDS??????? HEEEEEEEELLLLLLLLPPPPPPPP!!!!!!! Jeff