Re: Coil over conversion
I found the same thing. However I am still running with the stack arms for now. I have a set of 700 lbs ones I'm going to try as per a recommondation from another SYTY guy. Problem was they compressed too much. for a 26" ride height, the adjuster was up 3/4 the way up to the top. not knocking the product, just prefer it to be stiffer.
Maybe I'm stating the obvious, but unless the stock control arms, SM control arms, and RPM control arms all have the same geometry (and I really doubt they all do), then it's not all apples to apples. A shock and spring combination that somebody recommends on one type will absolutely not perform the same on a different type.
The SM control arms in particular (appear?) to have the lower shock mount further toward the lower ball joint than the stock control arm, which is going to give the control arm less leverage against the spring. So a 600lb spring on a SM set of control arms might feel the same as a 700lb spring on stock control arms.*
There's more to it than "use XXX lbs springs." You need to either scale the corners and measure the geometry and do the math, or rely on the experience of others that have something closer to your exact combination of weight and suspension. It's no surprise that when somebody installs the entire SM kit that it all works together nicely - because the shocks and springs are setup for the geometry of the control arms in the kit.
*(I just made all that part up but you see where I'm going...)
