East coast guy. Nice Cuda Hemi transplanted owns used car lot?
I was looking for a thread where he said he put a helper half spring on his car.
Don't see any of new post from him. And can't remeber his screen name.
Thought it was mentioned in the China Caltrac thread but nope.
I remembered it was Hellwig but still can't remember the guys name here I know he posted pics Dave and something after that is his name here.

Dave RS23?

Sounds a bit like me. Except the east coast part.

I think this is the thread you're referring to:

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/3031703/1/sagging-rear.html

Mike.

Yes that's the one. Thinking about Mancini XHD says ads one inch., instead of re-arch
Have a new street motor nsread of the 340 12.3 to one one. And will drive the mess I own that looks like it just pop out of 1978.
But my old Mopar Performance Mexican made have sagged.
So was thinking hard about just doing the add a leaf ya self as you can according to them adjust hight.
Change it out if don't work out. As cheap enough to try.
BE BETTER THAN HIGH JACKERS OR COIL HELPER SHOCKS that would stress the shock mounts.

The Hellwigs have always worked for me, unlike replacement leaf springs.

Not that it is a Hemi, but I put XHD springs on the Barracuda. Wow, was that screwed up. Driver's side was 3" lower than Passenger and it looked even worse from the front. Solution? I bought another set of XHD springs, used the HD springs on the car and sold the driver's side to my buddy who needed a new set of regular springs. He is a Mopar or no-car guy who has built over 60 cars and neither of us could believe how lopsided a sold set of XHD made the car. Thought a bad set of springs. Put the 2nd set on and same thing.

Yep, I still have a new set of leaf springs setting in the shop. Put them on, they sucked. Pulled them off and started looking for solutions to my old original sagging springs. That's when I stumbled on the helper springs. Been using them ever since.

What the hell is that last post in the linked thread? Guy appears to be giving a legit answer, but two “surveys” are linked and seems were added in edit. Only post the guy ever made. That’s a lot for a bot to manage or a gong the extra mile spammer.