RPM Baja Rey Front Upper & Lower Suspension Arm Set

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The RPM Baja Rey Front Upper & Lower Suspension Arm Set is lightweight, extremely rigid, re-engineered for performance and add adjustability where there isn’t any with the stock arms.

When RPM engineers looked over a stock set of Baja Rey A-arms, they noticed the upper A-arms were very flimsy and cause a bind with the steering spindles at full droop. So RPM designed their arms to be rigid and silky smooth throughout the full range of travel with a redesigned upper A-arm shape. The shape eliminates the bind while adding extra clearance at the pivot ball. The ultra tough materials beef up the upper arm for unrivaled strength and rigidity as well.

With zero shock mount adjustability on stock lower A-arms, it is very hard to tune your Baja Rey to your driving style or terrain. RPM A-arms add an extra outboard shock mount that will give you that added edge under any conditions.

One final, very important fix was to reduce the massive amount of negative camber incorporated into stock A-arms. RPM has reduced the negative camber to roughly negative 2° for significantly improved tire wear and overall vehicle performance.

RPM Baja Rey A-arms are designed and manufactured in the USA from RPM's outrageously tough blend of engineering grade nylons for performance that will outlast the rest of your truck! Bolt a set on your favorite ride and smile while your truck looks better, performs better and can handle whatever you throw at it!


  • Added extra outboard shock mount
  • Redesigned upper A-arm shape eliminates bind
  • Replaces stock Losi LOS234004
  • Sold with 2 – upper front A-arms and 2 – lower front A-arms
  • Stock Losi A-arm pivot balls required (not included)

NOTE: RPM Baja Rey A-arms replace stock Losi #234004 and are sold with 2 – upper front A-arms and 2 – lower front A-arms. Stock A-arm pivot balls are required (but not included – RPM recommends reusing those from your stock a-arms). RPM Baja Rey A-arms will not work on the the Super Baja Rey.

This product was added to our catalog on January 16, 2018.