Let's face it; breaking parts sucks! That's why you need RPM on your ride. Each RPM A-arm is molded from their blend of engineering grade nylons for unmatched strength and durability. RPM built oversized bosses around both the inner and outer hinge pins to help prevent hard hits from ripping your hinge pins out of the A-arm. They've also tightened up the tolerances around the hinge pins by over 0.005" (0.13mm) to reduce slop in the suspension system and improve retention of camber and rear toe angle settings.
Pair a set of RPM rear A-arms with a set of fronts (RPM #70632) and you can rest assured that the strongest parts on the market are protecting your ride!