the HS-5625MG is an excellent choice

INCLUDES: One Hand-held starter/battery holder One wire harness with plug-in connector One gear reduction unit with attached starter motor Three 3x12mm button-head screws featuring a hex-drive

This Slot Car will work on all Analog (non digital ) 1/32 scale tracks like

3mm rear pistons

Traxxas Nitro Slash 2wd

Traxxas 6456 Driveshaft Center 6061-T6 Aluminum XO-1 Revo Parts the HS-5625MG is an excellentTraxxas Driveshaft Center 6061 T6 Aluminum XO 1 Features: Constructed of 6061 T extruded aluminum, anodized blue in color Includes: Center Driveshaft for the Traxxas XO 1 Fits: Traxxas XO 1