Originally Posted by bobH
Heck of it is... on rear axles, and on steering columns, if the threads are REALLY messed up from hammering, then it's my opinion that a thread chaser does a little more damage, than good. So, what I've done for these situations, is to take a fresh, new nut that fits the thread, saw it open, clamp it around the axle or steering column, squeeze it back together as much as possible, and weld the saw cuts closed. Then, heat the damaged threads cherry red, and work the nut, backing it off a little at a time. The point, or goal, of this, is to try and re-form the old threads. After completing this, then use the thread chaser, as shown in Sheldon's post, above. Obviously, opinion and my experience. I have only done this three times, twice on steering columns, once on an axle.
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