Is their anywhere I can buy a new steering shaft gear and the half moon steering sector gear that goes with it? I have a bunch of slack in my steering. Bearings seem fine. When you travel down the highway the narrow front end goes back and fourth rapidly wearing out the tires. I have jacked up the front end and I can move the tires right and left about 2 inches both ways and the slack seems to show up between the worm gear and the steering sector gear at the top. Letting some of the air in one tire out helps, but that just wears out tires quickly and is not a fix. 1948 John Deere styled B. I also tightened the nut that holds down the half moon gear very tight...no slack there. Tightened the bearing cap at the end of the steering shaft. It makes the steering wheel harder to turn, but still leaves the slack in the steering. Mechanic said half moon gear had a key in it, but it seemed just fine, gear not loose on shaft. All looseness seems to be where spiral gear and half moon gear meet. Please help...tore apart now.