well i got standard rear disc brake setup for the ae86 which has the 25mm axles. no lsd for $250. i didn't want to use a torsen lsd and wanted a 2 way LSD, which are plenty TRD ones around for 300-500. Also aftermarket companies still make them brand new. I know they are for 1.6ltr 4age's but still in Japan they use this diff setup on 300hp drift cars.