Genuine NISMO Differential Mount Bush – Skyline R32 R33 R34 S14 S15 – 55476-RS580
Improve drivetrain response and reduce unwanted differential movement with a Genuine NISMO Reinforced Differential Mount Bush, designed for compatible Nissan Skyline, Silvia, Stagea and 300ZX rear differential mounting applications.
Developed as a performance-focused replacement for the original factory front differential mounting bush, this genuine NISMO component features reinforced, higher-durometer rubber construction to help reduce excessive differential movement during acceleration, deceleration and gear changes.
By providing firmer support for the differential mounting assembly, the NISMO bush helps maintain more consistent differential positioning under load, contributing to improved drivetrain response and a more controlled driving feel.
Unlike solid differential mounts, NISMO's reinforced rubber construction retains a degree of compliance, offering an excellent balance between increased mounting rigidity, everyday drivability and long-term durability.
Whether you're refreshing worn differential bushes on your Skyline, rebuilding the rear drivetrain on your Silvia or restoring a classic Nissan performance vehicle, genuine NISMO components provide a quality performance-oriented replacement.
Product Details
- Brand: Genuine NISMO
- Part Number: 55476-RS580
- Product Type: Differential Mount Bush
- Installation Position: Front Differential Mounting Position – Rear Differential Assembly
- Material: Reinforced High-Durometer Rubber
- Installation Method: Press-Fit
- Quantity: 1 Bush
- Quantity Required: 2 Bushes Per Compatible Vehicle
- Condition: Brand New – Genuine NISMO
Vehicle Compatibility
- Nissan Skyline R32 GTS-4 (HNR32) – Compatible AWD applications
- Nissan Skyline R33 – Selected 2WD and 4WD models
- Nissan Skyline R34 – Selected 2WD and 4WD models
- Nissan Silvia S14 – Selected models
- Nissan Silvia S15 – Selected models
- Nissan Stagea C34 / WC34 – Selected AWD models
- Nissan 300ZX (Z32) – Compatible rear differential mounting applications
Important: Compatibility depends on the vehicle's original differential mounting configuration, drivetrain and production date. Not all variants within the model ranges listed above use the same differential mounting bushes.
Please verify NISMO part number 55476-RS580 against your existing differential mounting components or the NISMO parts catalogue before purchasing.
Key Features & Benefits
- Genuine NISMO performance drivetrain component
- Reinforced higher-durometer rubber construction
- Designed for compatible factory differential mounting assemblies
- Helps reduce unwanted differential movement under load
- Supports more consistent differential positioning
- Helps improve drivetrain response during acceleration and gear changes
- Retains rubber compliance compared with solid mounting alternatives
- Suitable for performance street cars and selected track applications
- Ideal for replacing cracked, worn or deteriorated factory bushes
- Manufactured to genuine NISMO quality standards
Why Upgrade Your Differential Mount Bushes?
The factory differential mounting bushes support the differential assembly while absorbing vibration and drivetrain movement during normal driving.
Over time, original rubber bushes can deteriorate, soften, crack or separate from their mounting sleeves, allowing excessive movement within the differential mounting assembly.
Common symptoms of worn differential bushes may include:
- Excessive differential movement during acceleration or deceleration
- Drivetrain clunks when changing gears or applying throttle
- Unwanted movement during rapid throttle transitions
- Cracked, damaged or deteriorated rubber bushes
- Reduced drivetrain refinement due to worn mounting components
The NISMO Reinforced Differential Mount Bush provides an uprated rubber replacement designed to better control differential movement while retaining the benefits of a rubber-mounted drivetrain.
Quantity Required
This listing includes one (1) genuine NISMO differential mount bush only.
Two (2) bushes are required per compatible vehicle for the applicable differential mounting arrangement.
If replacing both differential mounting bushes, please add a quantity of 2 to your cart.
Recommended Matching NISMO Components
For a more complete differential mounting refresh, NISMO also recommends inspecting and replacing the associated upper and lower differential mount stopper bushes where applicable.
- 55474-RS580 – Genuine NISMO Upper Differential Mount Stopper Bush
- 55475-RS580 – Genuine NISMO Lower Differential Mount Stopper Bush
These components are sold separately and are not included with this listing.
Please confirm the correct stopper bush quantities and compatibility for your vehicle before purchasing.
Important Installation Information
This bush requires press-fit installation into a compatible differential mounting assembly.
Suitable pressing equipment and correct installation procedures are required to avoid damaging the bush or mounting location.
Professional installation is recommended. Inspect the condition of the differential mounting assembly, brackets, bolts, washers and associated rubber components during replacement.
Follow the applicable Nissan or NISMO workshop procedures and factory torque specifications.
As NISMO reinforced rubber bushes are firmer than standard factory components, an increase in drivetrain noise, vibration and harshness (NVH) may be noticeable, particularly in modified or performance-focused vehicles.
Why Choose Genuine NISMO?
NISMO is Nissan's official motorsport and performance brand, developing genuine performance components designed to improve the handling, response and driving characteristics of Nissan vehicles.
Genuine NISMO reinforced rubber drivetrain bushes provide a balance between increased mounting control and factory-style compliance, making them an excellent choice for enthusiasts maintaining or upgrading classic Nissan performance vehicles.
Note: This listing includes one (1) Genuine NISMO Differential Mount Bush – 55476-RS580 only. Two (2) bushes are required per compatible vehicle. Upper and lower stopper bushes, mounting hardware, brackets and other components are not included. Press-fit installation is required. Supplied in genuine NISMO packaging.
Australian Stock & Fast Dispatch: At OEM4JDM, every part listed as In Stock is physically on our shelf in Australia and ready for fast dispatch.