I posted not too long ago about help regarding a noise after replacing my struts (link).

I think I've found a problem: a nut behind the wheel no longer tightens, instead it simply spins with the bolt. On the rear left side, this nut is fully tightened, but on the rear right side it continues to spin because the bolt isn't being held in place.

My question is, what part is it and where can I find a replacement? I don't want to go pay $100 to replace a bolt if I can avoid it, as it seems like a simple problem.

Here are a few pics from a relevant YouTube video which display the part that's spinning in place instead of tightening:

Any help is much appreciated, thank you!!

 

Usually those type of droplinks either have a flat on the opposite side of the bar...


Or the tip of the stud is hollowed out for a hex drive...


Called a drop link, sway bar end link, or stabilizer bar link.

~$15, but check that you are simply not seeing the flats on the ball joint side, or that the stud hollow is not caked in muck. If it has neither, you can usually jam a block of wood against the backside of the balljoint and pry it against the bar and then tighten the nut down with a wrench.

They can be difficult at times.