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Differential Lockdown
The PERRIN rear diff lock down (DLS) consists of 4 urethane bushings that lock the differential by stiffening the front and rear mounts for zero movement under extreme conditions such as drag racing and road racing. This DLS removes the twisting movement from the rear differential which can cause a "squishy" or spongy feeling at the point of initial acceleration.
Subframe Lockdown
The subframe lockdown kit includes 2 urethane bushings, two metal sleeve washers and 2 bolts. They work together to solidify and lock the rear subframe in place, eliminating all driveline slop and that annoying thud from first to second gear.
Included
- (4) PERRIN Diff Lockdown Bushings
- (2) PERRIN Large Subframe Bushings
- (2) PERRIN Subframe Bushings
- (2) M12 Hex Head Bolt
- (2) Metal Bolt Sleeves
- Warranty, instructions, stickers
Vehicle Fitment
- 2002 - 2007 Subaru WRX
- 2004 - 2007 Subaru STI
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
| Manufacturer's Part Number | PSP-SUS-525 |
|---|---|
| SKU | perPSP-SUS-525 |
| Brand | Perrin |
| Product Type | Drivetrain |
| Drivetrain | Mounts and Chassis Bracing |






