HPI servo arm set is constructed of a black plastic parts tree and has 12 different parts on it for the Micro RS4.

INCLUDES:
#1-Front Diff Housing
#2-Wrench
#3-Ends from Diff
#4-Part of u-joint
#5-Sterring Column
#6-Inner housing for diff
#7-Part of u-joint, goes with part #4.
#8-Control Arm (long) for (Acoms, Airtronics, HPI-SX1, JR, KO Sanwa)
#9-Control Arm (long) for Hitec.
#10-Control Arm (long) for FUTABA.
#11-Part of rear shock
#12-Control arm (short) for Acoms, Airtronics, HPI-SX1, Jr, KO Sanwa.
#13-Control arm (short) for Hitec.
#14-Control arm (short) for FUTABA
One Plastic bag with 3-steel pins and a steering flange pipe that goes with part #5.


When removing parts from the part tree, trim excess off, this will let the part fit correctly on the car.