Wilwood brake install 1975 dart

Disc spindle
And part number is 114-11547

Rotors still run on caliper bracket and wilwood brings an instruction manual

View attachment 1715547775

So 140-11547?

That kit is specifically for a magnumforce 2” drop spindle. Are you running them?

I’ve run the magnumforce drop spindles myself in the past for a bit with stock Mopar disks, so, I know they use all the same wheel bearings and stuff as the stock 73+ disks. And I know the stock caliper brackets work with those spindles. But, there are differences between the margnumforce spindle and the factory ones (obviously). It could be that the caliper bracket position is slightly different, which may be causing the issue.

Have you called wilwood? Or magnumforce? Somebody must know why that kit is specific to those spindles.