With the RMS, now everything centers around the 4 bolts retaining the K member. *********** This is no different than stock. With the OEM K frame, all vertical loading is supported by those same four bolts and through the same frame rails. The rear anchor and t-bars only support the twisting motion of the bar, not the vertical displacement.
Actually, that's not quite correct if you analyze it. With a coil spring setup, the jounce loads are taken by the upper spring /shock mount. With T-bars, the majority is taken by the T-bar X-member. This is why the T-bar setup can have a very light forestructure. (Not to mention the super low C/G, reduced unsprung mass, etc.)
