We stock all of the popular caster correction options @ Cruiser Outfitters. OME, Dobinson & SuperPro (Poly or Rubber) DVS (replacement arms with caster correction), SPC (caster correcting knuckle bearings) or Slee (caster correction plates). Yeah, we like correcting caster
Regarding the various Poly Caster Correction bushings. We've sold thousands of them and I've driven around the world on them (literally), they do have less compliance than a rubber bushing but they are still completely workable as proven by the tens of thousands of Land Cruisers running them for 20+ years. While they can/do transfer force to the axle, so does a factory bushing and we've repaired cracked control arm mounts on rubber bushing Cruisers too. If you've got a high flex 80 with severe offroad use... correction bushings are the wrong answer, rubber or poly imo. You should be looking at plates or arms. Should you be using plates, we stock both OEM and aftermarket rubber control arm bushings and poly aftermarket bushings from OME and SuperPro. Options are king!