Powerflex's Black Series Rear Diff Rear Mount bushes are a significant upgrade for road and track cars, offering unparalleled stiffness and control. Building on their Yellow and Purple Shore 70A/80A range, Powerflex has responded to growing demand by introducing their new Black Series range, which boasts the most extreme track use and utilises their toughest Shore 95A compound.
Compared to the Purple Series, these bushes are approximately 25% stiffer, resulting in up to an 80% increase in stiffness compared to stock rubber bushes. In applications where additional vibration is not a concern, this translates to the best response and control possible. By using this grade of polyurethane, you can ensure that the bushes are never the weak link in your suspension setup.
Please note that these are Powerflex's stiffest bushes; if you prefer a more compliant option, consider their Yellow or Purple range. Each bush is listed with a photo and diagram showing where it fits on the car. The product page indicates exactly where this bush appears in Position 20 on the diagram, as it may be used in multiple locations.


| Seller | Demon Tweeks |
| Brand | Powerflex |
| Category | Gearbox Mounts |
| Condition | New |
| Stock Status | Out of Stock |
| Part Number | PFR5-4620BLK |
| Delivery Time | 1 to 4 days |
| Delivery Cost | 7.94 |
