IIn this video, I discuss the replacement of the front lower forward control arm bushing, often referred to by the acronym LCAB. The standard E9x and E82/87 bushings are fluid-filled, sometimes known as "hydro bearings." The M3 variant is nearly solid rubber and contains no voids. Myley offers an "HD" version, which you may see in this video. Additionally, there is an aftermarket option that utilizes ball joints or monoballs. I strongly advise against using these unless you're constructing a dedicated race car. Utilizing monoballs for street driving offers no advantages, but will result in increased noise and vibration.
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