Like I said in my other post...
Find a round headlight Granada rear end and it will bolt right in. Too much work and money to make the Bronco rear end to fit. The axle tube need to be removed and cut down to size, spring perches will need to be welded in place. A jig is required for this type work. The Granada rear is more plug & play.

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Jeff in Georgia
60 Tudor Falcon V8
64 Falcon Wagon V8