B (ASCC6089) is

so it drops into your layout as a complete working track section

4V versions require a standard LiPo-compatible balance charger

The Team Losi Racing TLR352000 Brake Disc

Powerhobby Aluminum Lower Shock Caps (4) XTREME FOR Slash Shocks

Traxxas 10758 Complete Slipper clutch Assembled for Mini Maxx Pliers B (ASCC6089) isTraxxas Complete Slipper clutch Assembled for Mini Maxx Slipper clutch, complete (fits Mini Maxx) (requires #10757 & 10762). The Mini Maxx slipper clutch comes completely assembled and ready to install in your truck with an included 47 tooth spur gear. When installing the slipper clutch, you must replace the standard driveshaft with a shorter 10757 series driveshaft and add the 10762 differential pinion gear.