Tapered shape to prevent binding between the Chassis and Mounting Bracket or chassis. All Replacement bushings are designed the shape but With different stiffness.

Note:

You may find it difficult to push Replacement bushings in yourself. Innovative Mounts' bushings are fitted into their corresponding Mounts in-house With a specialized Arbor Press. 

Bushing Stiffness:

• 60a Red: Recommended for light driving conditions.
• 75a Black: Recommended for most daily Driver vehicles. Standard for all H/F Series Engines.
• 85a Grey: Designed for Drivers seeking a mostly solid Mount kit.
• 95a Red: Designed for the track and Drivers seeking a solid Mount kit.