64 dart brake/suspension upgrade

Keeping them sliding such that both sides of the caliper apply equally is almost impossible. There is a reason that the inside pads always wear out first. In a really, really good design that has been well maintained the difference in wear can be marginal, but it's there.

Of the 5 vehicles that I own (3 operational) only two have sliding calipers and of the fixed caliper vehicles only one has aftermarket calipers on it. The other two are common as dirt OE fixed calipers. Every Toyota 4wd pick-up and Land Cruisers from the FJ-60 on use cast iron, 4 piston fixed calipers. The issue with them is that characteristically they all use a thin rotor.The early trucks used a non-vented rotor that was a whopping 17mm thick. The later trucks and the FJ-60's use rotors that are vented, but only 19mm thick.