Agree.. race pack deavers maybe?
Yea Deaver is known for their leaf spring tech but, I've had trouble with them on getting a set of springs for the rear.
I had a 4" lift w/ a shackle flip form DIY4X. so I thought a 54" stock spring would do the trick, give me the height I want.
Sounds simple enough but, 2 years later I'm on my third set of springs!
First set were too soft....Ok no problem just increase the spring rate a bit. Second set worked for about 4 trips and I began to see a sag in the left side that was getting worse. Mind you, this is not a daily driver, it sits in my garage most of the time. Third time, I drove to Deaver and showed them the problem [as I have for the first 2 times] showed them the K-5 gave the weight on both front and rear axles and decided to go with a 2.5" shackle flip from ORD in order to increase the arch in the spring and still retain the ride height I want.
[I figure it's kind of a rob peter to pay paul]
Three weeks later I get the springs, they look impressive, I put them on and the shackles are pointing strait back to the rear bumper!!, no lift and once again they are too soft.
So now, as of today my Blazer is at their shop in hopes of resolving this nightmare.
So I guess the point of my rant here is Deaver is not what it's cracked up to be.