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RPM's first design challenge was to beef up their version of the Slash rear A-arms to handle some serious abuse. The material around the inner and outer hinge pins has been increased by a whopping 64%! Then they eliminated all of the unnecessary holes and shock mounts that would be needed on other vehicles but not on the Slash, which significantly reduced the weight of the A-arms while improving crash durability. Even after all of the increased muscle has been factored in, the A-arms still come in at over 10% lighter than the original arms! Their final design task was to improve the fit and finish and what RPM came up with will eliminate most of the slop in the rear suspension system! The Slash owner can tighten things up to near perfect out back simply by adding in a set of RPM #80382 Rear Bearing Carriers. RPM Slash rear A-arms use stock suspension geometry and include stock rear toe angles.
RPM Slash rear A-arms are not only stronger and more durable than stock, they are also more rigid and less flexible too, making them the perfect addition to those race-level Slashes on the track. Additionally, the new geometry design leaves no place for dirt and rocks to get caught in the lower A-arm and reduces the chances of rocks and debris getting stuck between the axle and the arm.
Tech Notes: Stock rear axle carriers have an upper and lower hinge pin hole. RPM Slash Rear A-arms only allow the use of the original, lower hole location to be used. The upper axle carrier hole (which would lower the ride height in the back too much) cannot be used. To lower the rear end of the truck, RPM recommends using the outer shock mount hole positions in the A-arm.