Ride quality even worse than expected. Advice welcome.

Lot's of excellent suggestions/observations, @72bluNblu . Thanks!
Just to cut to the easier to respond to points while I'm still at work ;)

...

So-
  • Inspect your LCA bushings
  • Check your LCA bump stop to frame distance at ride height
  • Inspect your rear suspension, because you should't need blocks with Hotchkis leafs
  • Get a proper alignment if none of that turns up anything
...


- Based on your suggestion in an earlier thread, I was sure to torque the LCAs with the car’s weight on the wheels so that shouldn’t be an issue. I could always try loosening/re torqueing if the symptoms warrant it.

- My QA1 control arms do have bumpstops. The 1” guideline is very helpful and I’ll take a look at that tonight.

- Proper alignment has not happened yet... that certainly could contribute to "jittery" feeling.

- I’m confused about the rear ride height. There’s not a whole lot involved in installing leaf springs…I have the Hotchkis body mounts, stock shackles. After the install, the car was higher than it was with the original (very tired) springs.

This is the ride height comparison before/after the lowering blocks...in fairness, they were brand new in the first picture so perhaps they had yet to settle? That still doesn't explain why I needed lowering blocks to get where I am.

Dart lowering blocks.jpg