I bribed a buddy's buddy to rebuild the tranny for me at the dealership where he works using the B&M Master Racing Overhaul Kit (PN 20141) and Transpak (PN 20228). The Master Racing Overhaul Kit includes new high-performance clutches, bushings, seals, and everything else needed for a full rebuild minus the valvebody components. For that, the Transpak handles increasing shift firmness and allows the option of full manual control. I asked the rebuilder to install the RV/Heavy Duty shift version of the Transpak as opposed to the bang-shifting High Performance Street option. The Transpak goes either way.