i see the pic .. 83-88 model hilux yes ??
i dont know the brake setup for that car but i have a 89-95 shape hilux 2wd and have r33 4 spots and rotors which practically bolted straight on .. r33 have 15 rims stock but with 4 spots u have to pick the right rim to clear the calipers .. for more details on the brake conversion i did .. send checks or money orders to bad180sx@hotmail.com