If it was ME, I would order the following items from Rancho and install them
176352 Torsion Bat Relocator, Right
176353 Torsion Bar Relocator, Left
176349 Bump Stop Bracket (x2)
Return to OEM bump stops
Pick up a set of factory rear leaf spring shackles....there cheap, even from a dealer (Part #15166223 list for $10.40ea)
I'm confident that would take care of most of your problems and why Rancho users claim better ride quality then your experiencing.
MAYBE upgrade shocks at some point too as I no experience with Tuff Country shocks and can't comment on there quality
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