RPM Suspension Arms Rear Black HPI Baja 5B/5T/5SC - 82252RPM Rear A arms for HPI Baja 5SC, 5B & 5T Quick Links: Replaces the stock HPI 85402 Matching Front A arms are also available Two months prior to the release of these rear A arms for the HPI Baja 5B & 5T, we released our version of the front A arms. In that short amount of time, the durability of our Baja A arms displayed their unbeatable nature! That kind of performance can now be matched out back with our rear A arms for the 5SC, 5B & 5T. RPM Baja