Differential Mounts

Upgrade your drivetrain performance with ECS Tuning Performance Polyurethane Differential Bushings—engineered specifically for BMW F8x/G8x models and designed to deliver superior power transfer, durability, and driving precision.

Factory rubber differential bushings are built for comfort, absorbing vibrations between the differential and chassis during everyday driving. However, they are a known wear item that degrade over time—especially under spirited or aggressive driving conditions. Many F8x/G8x owners experience premature cracking and wear, leading to excessive drivetrain movement, reduced throttle response, and unwanted wheel hop.

ECS Tuning’s in-house engineered polyurethane differential bushings provide a high-performance solution to these common issues. By significantly reducing drivetrain deflection, these upgraded bushings enhance throttle response, improve handling stability, and minimize wheel hop—resulting in a more connected and controlled driving experience.

Constructed from durable 95A durometer red polyurethane and paired with precision CNC-machined 6061-T6 aluminum sleeves, these bushings are built to withstand extreme driveline forces while maintaining street-friendly comfort. Unlike solid or delrin mounts, ECS polyurethane bushings strike the perfect balance between performance and daily drivability—delivering increased rigidity without excessive noise, vibration, or harshness (NVH).

Whether you're carving canyon roads, launching at the drag strip, or simply commuting, these performance differential bushings ensure more efficient power delivery from the differential to the wheels—giving you better throttle modulation, traction, and overall control.

Key Features & Benefits:

Performance polyurethane differential bushings for BMW F8X models
Reduces drivetrain movement and improves power transfer
Enhances throttle response and minimizes wheel hop
95A durometer polyurethane for optimal balance of performance and comfort
CNC-machined 6061-T6 aluminum inserts with Type II black anodizing for corrosion resistance
Resistant to oil, chemicals, ozone, and road salt for extended service life
Designed to handle high torque loads and extreme driving conditions
Engineered using real-world load data and worst-case operating scenarios
Maintains street-friendly NVH levels compared to solid mounts
Replace worn factory bushings with ECS Performance Polyurethane Differential Bushings and experience tighter handling, improved drivetrain response, and long-lasting reliability.

Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

These 88A urethane E46 M3 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included is the front diff mount and two rear mounts in the cover.

As your E30 ages, the rear differential bushing can crack, dry rot, and split. It's time for an upgrade. The ECS Tuning Heavy Duty Differential Bushing is crafted with performance in mind. Instead of using polyurethane, which is known for increasing NVH, the enthusiasts at ECS chose HD 70D rubber. This material offers a close-to-factory feel without the excess deflection of softer bushings, ensuring a pleasurable driving experience free from differential whine and excess movement.

Features & Benefits:

Eliminates Weak OEM Mount: The aging E30 chassis deserves an upgrade. Replace your old, cracked, and worn factory bushing with this HD alternative for improved performance. Perfect for Street or Track: Constructed from HD rubber instead of polyurethane or Delrin, this bushing provides comfort for daily driving while remaining effective in performance applications. Added Responsiveness: The 70D HD rubber compound is stiffer than the stock material, reducing drivetrain movement and effectively locking down your rear differential. Easy Installation: Precision-manufactured to the exact specifications of your OEM differential bushing, the ECS heavy-duty replacement installs just like the factory component. Whether you are replacing an aging factory bushing, removing excess driveline movement, or balancing performance and comfort, ECS Tuning has you covered with their Heavy Duty Rear Differential Bushing.

Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set, delivering superior performance and stability. Engineered with precision and premium materials, this set is perfect for street applications, offering enhanced handling and reduced drivetrain movement without compromising on noise, vibration, or harshness levels. This kit is ideal for any enthusiast looking to improve vehicle dynamics without sacrificing overall comfort.

Key Features:

Easy Installation: Two-piece design enables straightforward installation using the included Revshift bushing lube, making upgrading hassle-free. Street Performance: Designed for street use, striking a balance between comfort and performance for everyday driving. Enhanced Stability: Minimize rear differential movement for improved stability and traction during acceleration, cornering, and braking. Durable Polyurethane Construction: Crafted from high-quality polyurethane, ensuring durability and long-lasting performance under daily driving conditions. Reduced Noise and Vibration: Soft and pliable 80A durometer construction significantly reduces NVH compared to higher-durometer or solid alternatives. Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set to experience a noticeable improvement in handling, stability, and overall driving dynamics. Elevate your street performance with confidence and precision.

Urethane mounts keep the differential from twisting under load. As torque is put through the driveline it causes anything to twist and move. The differential is mounted to the subframe and the twisting and deflection can be transferred to the rest of the chassis. With a stiffer mount the differential will not deflect as much. This improves seat-of-the-pants feeling to the driver, giving more feedback for smoother power delivery. In theory, there's also more torque being sent to the drive wheels since it's not being used up shifting the diff weight around.

These are tough 88A durometer urethane bushings with a anodized almunum center sleeve, engineered by ECS. This is a set of E36 diff bushings - 1 for the front and 2 for the rear cover. New high-grade hardware is included (the front bolt has a tendency to snap from all that torque twisting!).

Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set, delivering superior performance and stability. Engineered with precision and premium materials, this set is perfect for track applications, offering enhanced handling and reduced drivetrain movement. This kit is ideal for any enthusiast looking to keep their drivetrain from moving during track use.

Key Features:

Easy Installation: Two-piece design enables straightforward installation using the included Revshift bushing lube, making upgrading hassle-free. Track Performance: Designed for race use with maximum stiffness polyurethane. Enhanced Stability: Minimize rear differential movement for improved stability and traction during acceleration, cornering, and braking. Durable Polyurethane Construction: Crafted from high-quality polyurethane, ensuring durability and long-lasting performance under daily driving conditions. Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set to experience a noticeable improvement in handling, stability, and overall driving dynamics. Elevate your racing performance with confidence and precision.

This package of OEM E82 E90 E92 diff mounts replaces the stock rubber diff bushings. On a tuned 335i you may have noticed more driveline shudder or problems hooking up during hard launches. What happens is the stock rubber bushings are under constant flex as engine torque is transmitted through the differential. Under normal driving with a stock car the bushings are rarely stressed. But factor in significant additional torque from a tuned N54/N55 and the stock rubber will quickly show its weaknesses. You may have even broken a diff bolt or two as the heavy differential shifts around. Even non-turbo E82 and E9X models may benefit from fresh bushings.

This is a set of stock rubber bushings, made by OEM supplier Lemforder. They are the same as the Genuine BMW E9X diff mount bushings, but without the more expensive branding. If you're turned off by potential side effects of urethane or Delrin then the OEM diff mounts are your best option. The OEM mounts fit and perform just like the originals so there is no second guessing their quality. If you're looking for an upgrade we offer E9X solid Delrin and aluminum diff mounts that work well, even in street applications.

E9X Diff Mount Set includes:

• 33176760287 x 2, front differential mount
• 33176770866 x 1, rear differential mount
• (new hardware is optional and can be ordered separately below)
  
  This item fits the following BMWs:
  2008-2012 E82 BMW 128i 135i
  2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive - Sedan
  2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
  2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive - Coupe
  2007-2013 E93 BMW 328i 335i - Convertible

Absorbs vibration in the drive-train to help dampen noise that would be transferred to the cabin of the vehicle.

This item fits the following BMW Chassis:
E36,E38,E39

This kit includes Turner Motorsport solid aluminum differential race mounts pre installed in the differential cover for a quick install. These mounts where developed by Turner Motorsport for their Grand-Am Cup E46 M3 race cars, the advantages of solid aluminum mounts is increased suspension & drivetrain response, less drivetrain loss resulting in more wheel horsepower, and longevity - they effectively last forever. These CNC-machined mounts are a direct replacement for the stock rubber pieces, and have been lightened to remove excess weight. 

Turner Motorsport Differential Brace for F-Chassis N55/B58

Unleash the full potential of your N55/B58 engine with the Turner Motorsport Differential Brace, crafted to deliver stability and minimize deflection. Designed to withstand high-performance demands, this brace minimizes unwanted differential movement and provides a more immediate, responsive power transfer to the wheels, even at extreme torque levels.

Key Benefits:

Enhanced Driving Stability: Improved traction, reduced wheel hop, and an overall tighter rear-end feel. Durability: Reduces stress on factory rubber bushings, extending their life and protecting the differential bearing. Precision Fitment: Constructed from 6061-T6 aluminum with a Turner Blue anodized finish, engineered using FARO laser scanning and CAD technology. High-Grade Hardware: Equipped with corrosion-resistant Yellow Zinc-Chromate coated 10.9 fasteners, this brace is built for lasting strength. Installation Note:

Installation requires precision drilling (10mm and 15mm carbide bits) for a secure fit.

95A Polyurethane Differential Bushings

These high-performance polyurethane differential bushings from ECS Tuning deliver durability and an optimal balance of comfort and control. Designed to reduce differential deflection and improve throttle response, the 95A durometer polyurethane bushings bring track-level stability to your daily drive, without the noise or harshness of solid mounts.

Sturdy & Resistant: Made from tough 95A durometer polyurethane with anodized 6061-T6 aluminum sleeves, they resist chemicals, salt, and wear. Enhanced Handling & Control: Reduce wheel hop and improve throttle response, giving you better control in high-stress scenarios, from spirited driving to daily commuting. Engineered for Strength: Designed to handle extreme driveline forces, ECS Tuning’s bushings optimize power transfer while maintaining smooth performance. What's Included:

Turner Blue Anodized Rear Differential Brace Precision drill guides and complete hardware Polyurethane Differential Bushings for a superior driving experience

Bushings tends to wear over time and split or even break free from the internal sleeve, causing excessive movement and sloppy control feel. OEM Lemförder bushings are the perfect option to restore suspension back to day 1 quality.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Bushings tends to wear over time and split or even break free from the internal sleeve, causing excessive movement and sloppy control feel. OEM Lemförder bushings are the perfect option to restore suspension back to day 1 quality.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:
E82,E90,E92,E93