Lower control arm stiffening plates

The area going across each side ties them. The wider plate just overlaps the flanges on the bottom. Extra weight.

If that worked the factory bump stop plate would take care of it.

Overlapping the flanges the entire length of the control arm adds a significant amount of stiffness to the control arm, and the plate boxing in the entire open bottom does more than just keep the sides from spreading apart- it adds torsional resistance that you won't get from just a few straps. With the straps the area between the straps can still flex and twist.

The plates are super easy to make too, piece of plate, a sawzall and a hole saw and you're set. The difference in weight is a handful of ounces.

I'm in the process of restoring my 69 Dart , starting the suspension and brake system with an original Kelsey Hayes 4 piston disc system. When I dropped the LCA's I noticed how much slop there was so I fabricated stiffening plates to help alleviate the slop. I modeled my plates from aftermarket plates I've seen. Hoping this will help the drivability when its completely finished.View attachment 1715563397 View attachment 1715563399

Nice job with the plates at the end with the torsion bar lever. Even with the aftermarket plates I found that the sides of the LCA will still spread apart some at that end, which is the most important area for controlling flex in the UCA. I added a strap to mine there as well, although not quite as large as the one you added. That's not going anywhere!