Adjustable Strut Rods

Oh I shouldn’t even bother.

The torsion bar can slide back and forth too. Most cars have a good 1/4” or more between the end of the bar and the clip.

Here you go. A ~1/4” gap, so nothing to positively keep the bar from sliding back. Which means it can’t keep the LCA from moving back either.
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Now, torsion bars don’t slide around freely because they’re usually loaded. But keep in mind that as the suspension works up and down the load on the hexes varies quite a bit, and at full extension of the suspension there may be very little force on the hexes depending on how the adjusters are set. The bars can move. If the anchors are greased and the bars are fully unloaded they can slide right out by hand. Doesn’t usually happen if they’ve been in there for 20 years, but I’ve done it on bars I’ve installed recently.

The strut rod locates the LCA. Not the rubber in the control arm bushing, not the torsion bars. If the LCA was held positively in place by the rubber in the bushings or by the torsion bars, there’d be no need for the strut rod at all. And if there was no need for a strut rod, you’d better believe the factory would have left them out.

Is there value in adding shims to tighten the gap between the spring clip and the torsion bar?

Also, do you know of any poly strut rod bushing that are the correct thickness and locate the wheel side of the LCA in the correct location? Seems like if one would want to run poly strut rod bushings, they'd either have to modify the bushing, or use adjustable strut rods.