Set of 4, front pair and rear pair

9051 -  Driveshaft assembly, front, extreme heavy duty (1 set of 2)
9052 -  Driveshaft assembly, rear, extreme heavy duty (1 set of 2)

These upgraded driveshafts will not fit the older Slash 4x4 models without the heavy-duty upgrades (front/rear hubs, bearings, hexes)

A direct fit on the following models:

Raptor R
Stampede 4x4 BL-2s
Rustler 4x4 BL-2s
Slash 4x4 BL-2s