Sorry not an A body,But I need help with Arrow pickup brakes.

HankRearden said

Thanks . I'm thinking I may just mount some 4 piston Toyota calipers on a weld on bracket and use some slip on toyota rotors.
I was just trying to find a bolt on solution. The older I get the more I want a factory solution for ease of sourcing parts whenever and wherever i need.

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It would be convenient to have an upgrade kit.
I would look to see if Mits... made a vehicle with vented bigger brakes.
Lotta OEM parts are from other manufacturers like Bendix, Kouko?, others I can't remember, are sorta interchangeable in breed.
They made performance Colt/Omnis for rallying, maybe track some of that stuff down ,
Good luck, questions welcome if you want to DM me.