Any information regarding Ford 9 inches for a FJ40 needed. I was told that Bronco II's came with a Ford 9 inch that fit into the Landcruiser, if so which year? Any information would be greatly appreciated.
You could get a Toyota mini-truck rear end and cross breed it with the stock FJ40 rear end. Then you would have the centered rear diff you want, plus a better parking brake system, all with Genuine Toyota parts. It would also enable you to use the four spider front ARB because you wouldn't have c-clips to deal with.
The earlier Broncos came with 9 inchers. I don't think the Bronco II's came with a 9-inch. I think it was a precursor to the Explorer axles. Also Currie sells a 9-inch that is shortened for Heeps. Not for sure on the width though.