I'm an old Hot Rodder. Always looking for the next thing to move on to. OK, so I've got this First Gen Dodge Dakota (87-93) front suspension project and after some good beer searched the internet and came up with a plan for slightly bigger brakes. Goes like this:

Cut down the stock Dakota 5" x 4.5" disk brake rotors to take 98-02 Ford Crown Vic rotors. Use 95-00 Lexus LS400 aluminum four piston calipers and fab a bracket to hold it all together. Easy, yes? Well, not so bad so far. The Crown Vic rotor is 12.43" and 28.1mm wide. Near identical to a Lexus rotor. The whole shootin' match fits inside a 17" Mustang Bullitt wheel. So far I've got:

$120 machine rotors to hubs
$40 Lexus calipers from a boneyard(they are good!)
$100 Ford Crown Vic rotors
$22 Lexus brake pads

Under $300. I've got to fab the bracket still. Probably need a 1" spacer for the wheels because the caliper overhangs the rotor. Not a deal breaker. Can this be done for other setups? Probably, I'm only doing this one for the Dak.