Just like the front arms from RPM, these rears are molded from a 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 hinge pins out of the A-arm. They 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.
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