It depends on what parts you plan on buying. The easiest way to switch would be to buy the complete brake system from a 03 and up blaster. You would also need to get the spindles, hubs, and rotors from the 03 and up.
Be careful... Some time in '89 they went from a "pinch" style on the top and bottom to the present, tapered bottom ball joint shank and the straight, pinch style on the top. Modified spindles are not out of the question. norman420 - Photobucket - Video and Image Hosting