AKG Performance Parts for BMW

Rear Subframe and Differential Mount Bushing Set, Poly 75D (BMW E30)

Part#: SFDS30

Product Description

Rear Subframe and Differential Mount Bushing Set, Poly 75D for BMW E30. The stock rubber subframe and diff bushings deflect as torque moves through the drivetrain, which allows the entire rear end to move. Upgrading your stock rubber subframe and diff bushings to our poly 75D subframe and differential mount bushings will eliminate virtually all subframe and differential movement for increased power transfer to the rear wheels. It is also the first step in maintaining proper rear-end geometry and alignment.

Our U.S. Military Spec 75D durometer compound is as hard as a bowling ball, yet has elasticity and memory. This exclusive compound allows us to manufacture a bushing that has virtually the same performance as a solid bushing without the harshness on the chassis associated with solid metal bushings. Likewise, its elasticity and memory means they are also free from deformation which plastic bushings (Delrin, UHMW) are very prone to.

Made of our exclusive U.S. Military Spec polyurethane (75D hardness) with aluminum sleeves. Engineered for a perfect fit. Set of two subframe bushings and one differential mount bushing. Read why our polyurethane bushings are the highest quality bushings available.

Original AKG design. Learn more about Genuine AKG Parts here.

Recommended Use: RACE / TRACK

NVH Increase: High

Designed for the following models:

BMW E30 (1986-1991) 318 323 325 M3 – NOT iX

Made in USA




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