To center the caliper on the rotor place a 14 gauge machine bushing at both bolt locations.
The original Econoline hub must have the inner flange surface machined to give a final thickness of 5/16". The inner
neck diameter has to be reduced to clear the 2001 Mustang rotor.
The caliper can be mounted using the stock AMC hardware and bolts. Use a 1977 Chevy Impala front brake hose with two
copper washers and a 7/16" fine thread banjo bolt.
More photos of a step by step procedure
I am now working on another style caliper bracket and different caliper. 1982 AMC Concorde caliper brackets and calipers
will bolt directly to the Econoline axle with no modifications neccessary. If the caliper centers over the rotor properly
this will eliminate some machine work and may also be easier to find. If it does not line up correctly I may be able to use
a different rotor. I will post more information as things procede.