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Reply to "Sway Bar Upgrade"

quote:
So please tell me how to replace the studs?

Okay, this is how I did mine.

The original stud is a flat headed bolt - not slotted, not a phillips, not a hex - just a round, flat, smooth headed bolt. It was inserted from the inside, tack welded in place.

Mine broke off even with the crossmember. If yours did not, I would grind it flush with the crossmember. I drilled and tapped the remaining remnant to the proper metric size - 8mm?? Yup, I drilled and tapped the tack-welded head that remained welded to the chassis piece.

I then cut a proper length of 8mm thread and threaded it into the tapped hole. I then managed to get a nut on the backside of the new threaded stud.

I'm not sure all chassis designs allow access to the rear of the stud. Mine is a January, 72 car and there is an open channel that let me (with difficulty) get the nut installed.

I then double nutted the front, exposed portion of the stud (to allow me to firmly grip it) and was able to tighten the backside nut giving me a pretty securely installed replacement stud.

If you cannot get a backside nut installed, I think just threading the new stud into the drilled and tapped hole may be sufficient. After all, when the sway bar bracket is mounted, the force on the stud is pulling everything tight; I don't see how the new stud, even without a locking nut, could manage to unscrew itself. The trick would be getting it to stay put long enough to get the mounting nut tightened. Perhaps some red Loc-tite? Or installing it with some JB Weld?

Failing in either of those two approaches, you could just abandon the stud method and use a metric bolt and thread it through the mounting bracket and into your newly tapped hole.

Or for a cleaner look, you could switch to metric acorn nuts, bench install the new stud into an acorn nut, and install the acorn/stud assembly as a bolt.

I installed a backside locking nut because I knew I could and because it does at least seem a bit more secure.


quote:
I might as well do all four while I'm at it.

I can see no good reason to subject yourself to doing this more times than is needed.

Larry

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Last edited by lf-tp2511
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