I have never seen this before and its really starting to get to me so some one please help! Rebuilt front suspension on a 69 charger one side drops after you set the ride height and move the car a couple of feet, it completely unloads the torsion bar on the one side. The arm has had a new bushing installed, the reassembly was followed per the service manual. I marked every point on that side of the car that related to the torsion bar lower control arm assembly and the only place the mark showed movement was the pivot shaft pin to bushing. Is the pivot shaft slipping in the pin allowing the torsion bar to unload? The only other observation I have maid is that the torsion bar adjuster cam on that control arm is loose as with the control arm out I can turn that cam anywhere I want by hand and the other control arm for the other side is very tight, I could not dream of turning that cam by hand. Is the lower control arm just simple worn out or am I missing something else? I have checked the install of the torsion bars and they are correct right to left I have had the new bushing replaced a second time and each time I assembled the parts according to the factory manual. please help I have never had any problems with a front suspension like this!
Thank you!

Have you checked to see if the rear torsion bar socket is maybe rusted loose and spinning in the transmission crossmember?

Quote:

---

The only other observation I have maid is that the torsion bar adjuster cam on that control arm is loose as with the control arm out I can turn that cam anywhere I want by hand and the other control arm for the other side is very tight,

---

Is the adjuster bolt in its socket? If not the torsion bar cannot load the control arm.

I have seen where both sides would pull down on forward movement and that's a toe problem (too much toe-in). I suppose if the toe was far enough off and you had one side straight it could pull down the one side.

yes I have checked the adjuster is in the cam socket and the adjuster itself is in good shape. I eyeballed the tires for caster, camber and toe and still have this issue.

What JDMopar said. Did you check that?

If you have an aftermarket adjuster I suspect the female threads in the adjuster are going bad. Especially if you make the adjustment with the weight of car on ground. I would get a good NOS or used original. I don't think the after market is heat treating properly.

As a diagnostic, suggest you crank it back up to correct height then mark everything relative to a reference. Paint mark on the rear of the TB's with matching mark on the cross member, ect. Also include marks on the control arm and TB socket and adjuster bolt. Jounce it first to see if anything moves then drive it. I bet you'll find what is slipping.

Also it would be worth extra care working around the loaded TB just in case its cracked and yielding. It could let go with a bang.

Was the pivot pin and strut rod nuts tight when when you let the car down on the ground?

Sounds to me like you have the front hex 1/6th out of position.
With the upper contol arm rebound removed, the car jacked up and suspension hanging down, the front adjuster lever needs to be in the fully down position too before you slide in the bar.
If you have that front lever up too high before sliding in the torsion bar, it will not be able to be preloaded.

Quote:

---

I have done this and the place that its slipping is the bushing on the pivot pin.

---

That bushing can spin to the end of time and it still wont cause the suspension to drop.