Mr. P-body- No, I don't have an anti-roll bar, as I have a 4-link/leaf set-up. There is a fine line between too much pre-load and not enough with my set-up. If it's loose, the back of the car gets wandering around at the top end, and if it's a tad tight, it does the little dodge to the right if you nail the brakes. It's not enough to get the car crossed up, it's more like how these things used to steer with the factory alignment and worn out bias ply tires, but I prefer that to the high gear "watoosie". I'm probably a quarter turn too tight on pre-load. On the other hand, I could probably make a full pass without a hand on the wheel until the traps with the current setting. Dead, dead straight on the hit.