This is the larger front-mounted bushing for the trailing arm, a critical component in maintaining rear suspension stability. The trailing arm bushes (RTABs) help regulate the rear toe – the angle at which the tires point outward or inward. When these bushes wear out, rear toe alignment can shift under cornering loads, causing instability and an unpredictable loose rear end. Engineered specifically for M3 models, these high-quality RTABs also make an excellent performance upgrade for 3 Series models, improving handling precision and overall driving dynamics. Replace worn bushes with these to restore or enhance rear-end control, ensuring a more confident and predictable drive.

OEM Part Number: 33326770817
Alternative Part Number: 33326757885
Lemforder Part Number: 3503801