Differential Bushings for BMW F83 M4 S55 3.0L

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Worn differential bushings can create drivetrain slop and excessive vibrations. Turner Motorsport carries both Genuine BMW and high quality aftermarket options to get you back on the open road in no time.
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Turner Dual-Mount Differential Plate - With ECS Poly Diff Bushings - ...
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Turner Motorsport - Corporate Logo
T#:589795
Part#: 026773TMS03KT
In Stock
Sale - Save 20% $ 999.99

This product was last offered at the strikethrough price on
05-03-2026

$ 799.99 USD
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Sale - Save 20%
$ 999.99

This product was last offered at the strikethrough price on
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$ 799.99 USD
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Allows for the addition of a second rear-position differential bushing, and allows for a more enhanced driving experience by removing unwanted movement. Engineered by Turner to withstand extreme driveline forces. Featuring ECS Poly Diff Bushing kit for maximum performance & handling.
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Powerflex Rear Diff Rear Mounting Bushing - F8X M2,M3,M4
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Powerflex - Corporate Logo
T#:554716
Part#: PFR5-4026
In Stock
$ 109.99 USD
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$ 109.99 USD
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Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.
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Powerflex Dual Mount Diff Bracket - BMW F8X M2/M3/M4
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Powerflex - Corporate Logo
T#:14023858
Part#: PFR5-4030
In Stock
$ 309.99 USD
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NOTE: We suggest replacing 3 of BMW # 31126760203 during installation Kit comes supplied with M14 mounting bolt, thread locker, and a Powerflex keyring. With the newer F8x M2/M3/M4's making big power and having superb chassis straight from the showroom, it's no wonder they're often found at the most serious of track-days or at tuning shops around the globe. Unfortunately, the power that makes these cars so fun to drive eventually has an impact on the vehicles' suspension components- most notably the rear differential bushings. Despite having alloted for two mounting bushings on the factory tubular subframe, BMW opts to use only a single offset bushing in the rear to mount the diff bracket to the subframe. This essentially creates a pivot point for the diff under torque loading, especially if the 4x front diff bushes are worn out and softer than they once were. With hard launches and sudden and frequent on-off throttle changes, the single rear OE rubber bushing is subject to extreme torsional and directional forces, resulting in rapid degradation with failure often seen at around the 30,000-40,000 mile mark, and an unsettled and potentially clunky rear-end. The PFR5-4030 Dual Mount Diff Bracket is made from our in-house CNC machined 6082 High-Tensile Aluminum, and is designed to utilize the secondary mounting position on the OE subframe. With the addition of a second bushing, this prevents the diff from twisting under load, providing benefits such as: Reduced drivetrain movement Improved throttle response A more controlled and consistent chassis response to acceleration/deceleration Improved tire-to-road power transfer due to reduced wheel hop Reduced strain on bushings The corrosion-resistant, satin black, anodized aluminum bracket is optimized for high stress and deflection while withstanding high torque loads, but serves the same purpose in road-use and track-use cars with either a single OE bushing or dual aftermarket bushings. Although the bracket can be fitted without the need to remove the subframe from the vehicle completely, we would strongly recommend combining Powerflex products by using our already hugely popular 80A durometer PFR5-4026 Rear Diff Rear Mounting Bushings for both rear mounting positions alongside our PFR5-4025 Rear Diff Front Mounting Bushings in the front for the ultimate in differential control and a lasting street or track solution.
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Rear Diff Mount Bushing - Rear Position (95A) - F80, F82, F83, F87, G...
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ECS - Corporate Logo
T#:589057
Part#: 026696ECS03
In Stock
$ 112.99 USD
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$ 112.99 USD
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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.

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ECS Polyurethane 95A Differential Bushing Set - F80 M3, F82, F83 M4 ...
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ECS - Corporate Logo
T#:589549
Part#: 26696ECS09
In Stock
Sale - Save 30% $ 428.99

This product was last offered at the strikethrough price on
05-03-2026

$ 300.29 USD
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Sale - Save 30%
$ 428.99

This product was last offered at the strikethrough price on
05-03-2026

$ 300.29 USD
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Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
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Turner Dual Mount Diff Plate - With Extra Rear Position ECS Poly Bush...
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Polyurethane bushings are needed for this kit!
Turner Motorsport - Corporate Logo
T#:589796
Part#: 026773TMS04KT
In Stock
Sale - Save 30% $ 576.99

This product was last offered at the strikethrough price on
05-03-2026

$ 403.89 USD
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Sale - Save 30%
$ 576.99

This product was last offered at the strikethrough price on
05-03-2026

$ 403.89 USD
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Turner Dual Mount Diff Plate with an Extra ECS Rear Poly Bushing for the second subframe diff mount. ONLY FOR USE WITH EXISTING INSTALLED POLY BUSHINGS!

BMW F8X & G8X M2 / M3 / M4 Powerflex Rear Diff Rear Mounting Bush...
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Powerflex - Corporate Logo
T#:554715
Part#: PFR5-4026B
In Stock
$ 122.99 USD
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$ 122.99 USD
Free Shipping
Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.
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F8X M2/M3/M4 Rear Subframe Bolt Kit
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Genuine BMW - Corporate Logo
T#:389827
Part#: F8XMRSUBBOLTS
Ships in 1 day
$ 200.99 USD
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$ 200.99 USD
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The rear subframe bolts on the M2/M3/M4 are one-time use only and need to be replaced any time they are removed, such as during a diff install, sway bar install, bushing replacement, or any time the subframe is removed. Re-using the original bolts may damage the threads inside the body so make sure you have new M2/M3/M4 subframe hardware on hand for any work.
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2-Piece Rear Subframe Bushing - Rear Position (95A) - F8x, G8x ...
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Turner Motorsport - Corporate Logo
T#:53326250
Part#: 056755LAKT
In Stock
New Item
$ 104.98

This product was last offered at the strikethrough price on
05-07-2026

$ 99.99 USD
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$ 99.99 USD
Free Shipping on orders $49 and up

Enhance rear-end control and put more power to the ground with a straightforward 3-piece design that installs with ease. The factory rubber may favor ride comfort, but it struggles to keep up when driving gets aggressive. As it wears, the OEM bushing can soften and deform, reducing stability and allowing wheel hop to creep in when you need traction most.

Our 95A durometer polyurethane bushings solve that problem. Engineered to strike the perfect balance between soft factory rubber and harsh solid mounts, they significantly reduce differential movement without introducing excessive vibration. The result is more efficient power transfer, so your torque goes straight to the rear wheels instead of being lost in drivetrain flex.

Features & Benefits:

Minimizes differential movement and instability to help eliminate wheel hop
Two-piece 95A split polyurethane design for easier installation
Precision-fit insert reinforces the bushing and strengthens mounting points
Resistant to road salt, oils, and harsh chemicals
Compatible with dual mount differential plates
Design:

Type II Anodized 6061-T6 CNC billet aluminum inserts for superior corrosion resistance and durability.
95A Polyurethane 2-Piece Isolator.
Product Development:

Our Rear Differential Bushings are designed, engineered, tested, and quality inspected by our Research & Development team. Our development process includes leading-edge product technology: FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Turner BMW Dual Mount Diff Plate - With Extra Rear Position OE Bushin...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:589799
Part#: 26773TMS05KT
In Stock
Sale - Save 25% $ 611.99

This product was last offered at the strikethrough price on
05-03-2026

$ 458.99 USD
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Sale - Save 25%
$ 611.99

This product was last offered at the strikethrough price on
05-03-2026

$ 458.99 USD
Free Shipping
Genuine BMW Rear Axle Hex Bolt With Washer - M12 1.5x80
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Genuine BMW - Corporate Logo
T#:13460
Part#: 33176760337
Ships in 4 Business Days
$ 11.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 9.99 USD
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$ 9.99 USD
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Replace your differential mounting hardware during service to eliminate problems caused by rusted or stripped hardware.