E8X/E9X Solid Differential Bushing Kit

BMW E8X/E9X Billet Aluminum Differential Bushings

Eliminate differential movement and improve drivetrain response with our solid billet aluminum differential bushings for BMW E8X and E9X chassis.

CNC-machined from high-strength billet aluminum and finished in gold anodizing, these bushings replace the soft factory rubber mounts with a rigid, durable solution designed for high-performance street, drag, drift, and road-race applications.

Precision Knurled Press-Fit Design

The outer surface of each bushing is knurled to create a secure fit within the subframe. This added surface engagement helps prevent the bushing from rotating, shifting, or walking out.

Why Upgrade to Solid Differential Bushings?

Factory rubber bushings allow the differential to move under acceleration, braking, and shifting. As the bushings wear, this movement can contribute to drivetrain slop, wheel hop, and inconsistent power delivery.

Solid aluminum bushings provide:

• More direct power transfer
• Reduced drivetrain movement and slop
• Improved traction during hard launches
• Reduced wheel hop
• Sharper throttle and shifting response
• Greater durability 

Available Versions

Non-M: For all non-M BMW E8X and E9X rear subframes, regardless of whether the vehicle uses a non-M or M3 differential.

M3 / 1M: For BMW E82 1M and E9X M3 rear subframes.

Fitment

• BMW E81, E82, E87 and E88
• BMW E90, E91, E92 and E93
• BMW E82 1M
• BMW E90, E92 and E93 M3

Solid differential bushings will transmit more drivetrain noise and vibration into the chassis than factory rubber mounts. This is expected and should be considered for vehicles focused primarily on comfort. We know you know this, and we know you are about to wear some tires out! 

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.