Upper bolster/steering shaft

Best fix is as the Cowman suggests - fill the steering pot with good quality grease and forget about it!

With the cover off the steering box, rotate the input shaft back and forth by hand and observe the movement of the gears the slack is taken up.

If the worm shaft shows movement lengthwise it needs a new ball bearing on it’s front end. And if the rear end of the worm shows any radial movement, the bushing there must be replaced.

If the pivot shaft worm gear shows any horizontal (front to back and/or side to side) movement, the upper pivot shaft bushing is worn. The only fix is to replace the bushing.

Finally if there is slack between the worm and pivot shaft gear on account of gear wear, and the worm gear is a full 360 degree style, sometimes removing the gear, turning it 180 deg and putting it back on (so fresh, unworn teeth now engage the worm) helps. But if the gear is the “half moon” style it cannot be rotated – only solution is to replace it.

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My experience is it’s usually a combination of all of the above causing steering play.

On our Super H, we found the univeral joint in the steering shaft was worn too, so we replaced it. That along with a used but much better sector gear stopped the wobble. The bushings weren't bad but replacing the seal was BAD!!!

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Incidentally replacing the pivot shaft seal on my Super H gave me fits too. Wound up making a "seal installation tool" (turned on the lathe from an old wooden tool handle...) to push the seal up into place. And the after that exercise I discovered the NEW seal leaked - though not nearly as badly as the original one. That's when I gave up and packed the steering pot with grease. Hasn't leaked a drop in 6 years now!!