hilux 4 pot (s12+8 caliper) and U12 pintara discs, been running em for ten years under 13 wheels, and doubt i was first

bobs would be on vented discs? a solid would be too thin for the caliper to work in its proper range

the U12 pintara disc is vented if you want a good disc to use, some machining required to fit

great brakes, only downside could be the cast iron caliper is heavier than an alloy alternate