[Keith Seymore]

Well - they didn't all do that, but enough of 'em did that to keep my children fed...

Some of them were bad enough you could drive all the way home without touching the steering wheel (assuming you could make right turns the whole way).

Good advice above with the caliper and hose replace. This might be obvious but one thing I would add is that if it goes hard to the right that means the LF caliper is deficient (as opposed to the RF being an "overachiever"). Corrosion inside the caliper can cause this, as can a rough surface finish allowing the piston to cock/wedge in the bore (very poor L/D ratio in the original design).

The other thing is that during deceleration axle windup can cause a RH steer input.

Because of the fore/aft steering drag link, rolling the top of the axle forward (as in deceleration) wants to compress that drag link. That results in either (a) the steering wheel rolling to the left, or (b) the road wheels being physically steered to the right.

A lot of brake issues were masked or misdiagnosed (or exascerbated) by this "designed in" anomoly. Watch for it as you do your testing. It can be minimized by adding three leaf front springs or designing a kind of reverse "traction bar" set up to control the axle wind up.

Once the customer was sensitized to this they could be super picky. When we would fix customer complaint vehicles or buybacks at the Proving Ground we would do both the brakes and the suspension fixes, just to be sure.

K