BMR A-Arms Offer Improved Handling For Second-Gen F-Bodies

As much as we love first- and second-gen F-bodies, there is no denying the handling of these classic cars leaves much to be desired. With modern materials and manufacturing processes there’s no reason your hot rod can’t have drastically improved handling characteristics that put it more on par with modern performance cars. To help bring the handling performance of your 1970-1981 F-body into the 21st century, BMR Suspension has released new upper and lower A-arms.

BMR A-arms

 

A-arms are one of the most important suspension components when it comes to improving the handling performance of a vehicle. They are a direct link between the front wheels and the chassis. If the A-arms or their bushings allow any deflection during cornering it can cause changes in the car’s alignment and affect how the car feels from the driver’s seat. To combat this, BMR constructs its upper A-arms from 1.250-inch diameter, 0.095-inch wall DOM tubing that is reinforced with laser-cut CNC-formed plate steel braces. The A-arms are assembled with CNC-machined, nickel-plated, dual-offset cross shafts with heavy-duty stainless steel bushing retainers. The bushings are made of Delrin to provide a solid, more responsive feel for stock rubber bushings. BMR’s bushings feature internal flutes that allow grease to evenly coat the inner sleeve and direct grease to the outer edges of the bushing to lubricate the thrust surface.

The BMR upper A-arms are engineered to provide two additional degrees of positive caster for more stability at high speeds. Additionally, the A-arms have a shorter overall length as compared to factory upper A-arms. This results in less shim stack needed to achieve negative camber on lowered cars or race and pro touring cars with more aggressive alignments. You can also combine the BMR upper A-arms with their new lower A-arms to achieve a total of four additional degrees of positive caster for even more high speed stability.

BMR A-arms

The BMR lower A-arms are fabricated from 1.500-inch diameter, 0.095-inch wall and 1.525-inch diameter, 0.095-inch wall DOM tubing with laser-cut CNC-formed steel braces for added strength. The lower A-arms feature the same fluted Delrin bushings as the upper A-arms to provide a solid, more responsive feel. BMR also assembles its lower A-arms with heavy-duty ball joints. The tubular design offers a significant weight savings over stock A-arms while providing additional strength.

BMR A-arms

BMR offers its upper and lower A-arms in either red or black hammertone powdercoat for a long lasting finish. Installation time for the A-arms is approximately three to four hours. In less than a day you can have your second-gen F-body’s front suspension upgraded with the BMR A-arms and immediately feel the improvement. For more information visit BMR’s site here.

 

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About the author

Jeremy Nichols

Jeremy loves to go fast, whether that's on two wheels, four wheels, or boating. With a willingness to compete at almost anything, Jeremy shoots competition long-range rifles matches and races road bicycles and enjoys building vehicles for people.
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