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RPM eliminated the slop in the suspension system, tightening the tolerances around the hinge pins, reduced the fore and aft movement of the A-arms at both the inner hinge pin and at the axle carriers by better than 90% and improved the durability dramatically. As a bonus, they cut 6.5 grams of weight off of each A-arm! That’s a total loss of just under one ounce of weight simply by replacing your stock A-arms with the RPM versions!
RPM A-arms carry over their traditional look with their 30 degree leading and trailing edges, and huge bosses for the shocks and sway bar mounts. Additionally, you now have the option of a bit of color with either blue or black to choose from.
RPM A-arms are molded in our trademark blend of incredibly durable nylons and are backed by an industry leading warranty.