BMR CBK557 Rear Upper/Lower Control Arm Bearing Kit for C5/C6 Corvette

Vehicle Fitment

• 1997-2004 Chevrolet Corvette (C5, Base)
• 2005-2013 Chevrolet Corvette (C6, Base)

Fitment Notes

• Rear upper and lower control arms - a separate part (CBK556) covers the front
• Not compatible with 2006-2013 Corvette Z06 or 2009-2013 ZR1 due to differences in rear control arm design

Features

• Replaces factory rubber control arm bushings with heavy-duty spherical bearings
• Machined 6061 billet aluminum bearing cups
• Eliminates control arm bushing deflection under load
• Significantly reduces wheel hop
• Dramatically increases suspension control and improves steering feel
• Black anodized finish for durability
• Made in the USA

Specifications

• Position: Rear, upper and lower control arms
• Bearing cup material: 6061 billet aluminum
• Finish: Black anodized
• Installation time: approx. 5-6 hours

Included Components

• 1x BMR rear upper and lower control arm bearing kit

Product Description

The BMR CBK557 replaces the factory rubber rear control arm bushings on C5 and C6 Corvettes with heavy-duty spherical bearings housed in machined 6061 billet aluminum cups, addressing the deflection that stock rubber bushings introduce under both normal driving and aggressive maneuvering. That deflection is a common source of wheel hop and inconsistent handling under load.

By eliminating bushing movement in both the upper and lower rear control arms, this kit dramatically increases suspension control and improves steering feel, letting drivers push the car harder with more confidence on the street or track. Installation runs approximately 5-6 hours, and the kit ships in a durable black anodized finish - note that it does not fit the Z06 or ZR1 due to their different rear control arm geometry.