to be honest the FRPP ucas were stock with softer bushings. the MM Lcas are amazing. i like the height adjustability and bearing material. urethane bushing on the chassis side and delrin on the axle housing. i got them for a hell of a deal. i only bought the MM Lcas was because i installed the lateral panhard bar. the ride is exceptional in that configuration. i use to have the Steeda adjustable sway bar in the rear and i didnt like the pinion angle. maybe i installed it wrong but i didnt like it. I switched to Panhard bar and my previous flowmaster exhaust kept scissoring the UCAs and frame rail. in turns id hear a "pop". this is why i switched to Mac pro dumps. give a week or so ill let you know how the current configuration is. not only did the chassis guy put work into it, i did as well. thanks Brett. i also say if you have more questions please ask. Brett knows i hide nothing.
as of lately i now how steeda UCAs with delrin bushings on both sides.
** i updated the build thread with pictures of the current 6pt install.