Powerflex Road & Black Series Dual-Mount Rear Differential Bracket BMW 3 Series F30 F31 F34 F80 M3 11-18
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Improve drivetrain location on your BMW 3 Series / M3 F30 F31 F34 F80 with the Road & Black Series Dual-Mount Rear Differential Bracket from Powerflex. Developed for the listed application, this polyurethane component is designed to reduce excess movement at the relevant mounting point and provide a more consistent connection between the drivetrain and chassis.
IMPORTANT – CHECK FITMENT BEFORE ORDERING
Powerflex applications can vary by chassis, model year, factory option, bush location and component size. Please match the listed vehicle details and Powerflex part number PFR5-4030 to your vehicle before ordering. If your vehicle uses a size-specific bush, measure the original component or anti-roll bar where applicable.
BLACK SERIES – PERFORMANCE USE
Powerflex Black Series products are intended for more focused performance and motorsport applications. Depending on the mounting position, increased stiffness can result in additional noise, vibration or harshness compared with standard rubber bushes.
Product Overview＋
Supplied complete with M14 bolt, thread locker and Powerflex keyring. The bracket comes on its own without bushes, so you can choose to use it with a variety of bush combinations. Single OE bush, Dual OE bushes, Single OE bush with single PU bush (1 x PFR5-4026) or Dual PU bushes (2 x PFR5-4026). We would recommend dual PU bushes ideally. If you wish to use it with a single OE bush with a single PU bush, then the PU bush would fit in the vacant right-hand mounting hole in the subframe. With the newer F8x M2/M3/M4s 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 across the globe. Unfortunately, the power that makes these cars so fun to drive eventually has an impact on the vehicle components, most notably the rear differential bushes.Despite having the provision for two mounting bushes on the factory tubular subframe, BMW opts to use only a single offset bush 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 and softened. With hard launch starts and sudden and frequent on-off throttle changes, this puts the single rear OE rubber bush through extreme torsional and directional forces, resulting in accelerated ageing with failure often seen at around the 30-40,000 mile mark and an unsettled and potentially clunky rear-end. We are proud to release a high-performance solution to this problem, giving you the tools to re-establish rear-end stability on your F8x M2/M3/M4.PFR5-4030 Dual Mount Diff Bracket is made from our in-house CNC machined 6082 High-Tensile Aluminium and is designed to utilise the secondary mounting position on the OE subframe. With the addition of a second bush, this prevents the diff from twisting under load, providing benefits such as:Reduced drivetrain movementImproved throttle responseA more controlled and consistent on-off throttle chassis response. Improved tyre-to-road power transfer reducing wheel hopReduced strain on fitted bushes The corrosion-resistant Satin Black Anodised Aluminium Bracket is optimised for high stress and deflection whilst withstanding high torque loads but is designed to function equally on standard or modified vehicles with either a single OE bush or dual aftermarket bushes. Although the bracket can be fitted without the need to remove the subframe from the vehicle completely, we would naturally recommend combining Powerflex products by using our already hugely popular 80A durometer PFR5-4026 Rear Diff Mounting Bush for both subframe rear mounting positions with the addition of our PFR5-4025 Rear Diff Front Mounting Bushes for the front for the ultimate in differential control and a lasting fast-road or track solution.
Fitting Instructions
OEM Part No:33172284775
Diagram Reference: 30
Bush Size: N/A
Pack Size: 1
Manufacturer information retained from the product data supplied for this Powerflex part.
Key Features＋
- Black Series: Powerflex Black Series specification as identified in the listing/manufacturer information.
- Application-Specific Design: Specified for BMW 3 Series F30 F31 F34 F80 M3 11-18.
- Powerflex Part Number: PFR5-4030 for straightforward fitment checking and reordering.
- Polyurethane Construction: Designed as a durable alternative to ageing or excessively flexible original rubber components where applicable.
- Focused Component Control: Helps manage unwanted movement at the mounting point relevant to this part.
- Drivetrain Location: Intended to reduce excessive movement at the relevant differential, gearbox, subframe or related mounting point.
Why Upgrade?＋
- Helps control unwanted drivetrain movement at the relevant mounting point.
- Can sharpen the response between the engine, gearbox, differential and chassis where the original rubber mounting has softened or worn.
- Suitable for drivetrain refreshes and performance-focused builds where more consistent component location is required.
- A durable polyurethane upgrade for a known wear or movement point on the listed application.
Technical Specifications＋
- Manufacturer: Powerflex
- Product: Road & Black Series Dual-Mount Rear Differential Bracket
- Part Number / SKU: PFR5-4030
- Range: Black Series
- Product Category: Drivetrain
- Position: Rear
- Durometer: 80A
Vehicle Compatibility＋
- Vehicle Brand: BMW
- Vehicle Model: 3 Series / M3
- Vehicle Variant / Chassis: F30 F31 F34 F80
- Listing Application: BMW 3 Series F30 F31 F34 F80 M3 11-18
- Powerflex Reference: PFR5-4030
✔ Match the chassis/model and Powerflex part number before ordering.
✔ Check any diameter, drivetrain or factory-option requirements stated in the manufacturer overview.
✔ If you are unsure, contact DC Prestige with your registration or full vehicle specification before purchase.
Installation＋
- Drivetrain bush installation varies by application and may require supporting or lowering the differential, gearbox, subframe or related assembly.
- Correct installation orientation and lubrication should be followed where specified by Powerflex.
- Stiffer drivetrain bushes can increase transmitted noise, vibration or harshness depending on the vehicle and bush position.
- Professional installation is recommended where specialist support, pressing or extraction equipment is required.
Frequently Asked Questions＋
Q: Will this fit my BMW 3 Series / M3 F30 F31 F34 F80?
A: This listing is specified for BMW 3 Series F30 F31 F34 F80 M3 11-18. Always confirm the chassis, variant, component size where relevant, and Powerflex part number PFR5-4030 before ordering.
Q: Is this suitable for normal road use?
A: Black Series is the more focused Powerflex range and is primarily aimed at performance and motorsport applications. Increased stiffness can transmit more noise, vibration or harshness than standard rubber or softer road-oriented bushes.
Q: Will fitting this change noise, vibration or ride quality?
A: It can. Any reduction in bush compliance may transmit more feedback through the chassis. The effect depends on the product, its mounting position and the Powerflex range used.
Q: Is professional installation recommended?
A: Yes where the job requires pressing, cutting, lowering a subframe/drivetrain component, alignment work or specialist tools. Correct installation is important for bush life and vehicle performance.
Q: How can I confirm I am ordering the correct part?
A: Match your vehicle, chassis and any size-specific information to the listing, then verify the Powerflex reference PFR5-4030. DC Prestige can also help check fitment before ordering.
