I crawled into the fuselage and replaced each of the pairs of bolts upon which the brake pedals pivot, with a single AN3-60 bolt that goes all the way through both sides of the pedal. As promised on the VAF forums, this really does make the brake pedal pivot more smoothly and want to bind up less. But let me tell you, this would be sooo much easier to do before the pedals are installed in the airplane. There's not a lot of access under there to fiddle around with washers and cotter pins, but I managed to get it done.
Something closer to an AN3-56 would have worked even better here, but only -55 and -60 lengths are commonly available. I just put a few washers under the bolt heads and nuts. Done deal.