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SKU: TS-RDI-860
Torque Solution 10-17 Audi S4 / 08-17 Audi S5 Billet Rear Differential Insert
The Torque Solution Billet Rear Differential Insert TS-RDI-860 replaces the factory rubber bushing in 2010-2017 Audi S4 and 2008-2017 Audi S5 Quattro models. CNC-machined from solid aluminum this part stiffens the rear differential mount to reduce wheel hop and send power directly to the wheels. Drivers gain sharper handling precise launches and better traction for street or track use.
Key Features
- Billet 6061-T6 Aluminum Construction: Delivers rigid support that manages high torque loads without flex for direct reliable power transfer to the wheels.
- Black Anodized Finish: Shields against corrosion and wear in tough driving conditions for enduring performance over time.
- Direct Bolt-On Design: Matches OEM dimensions exactly for easy drop-in installation with no vehicle modifications needed.
- Wheel Hop Elimination: Secures the differential firmly to boost traction during hard acceleration and cornering maneuvers.
- Track-Tested Durability: Built tough from real motorsport use to handle repeated launches without failure.
Product Notes
- Single insert replaces the rear differential's stock rubber bushing completely.
- Pair with other drivetrain bushings for full stiffness throughout the system.
- Packaged in protective foam insert within a 6 x 4 x 2 inch box.
Installation Notes
- Professional installation recommended.
- Requires rear suspension access using jack stands and torque wrench.
- Uses factory hardware torque to 56 Nm per manufacturer specs.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2016 | Audi | S4 | 3.0T Quattro |
| 2017 | Audi | S4 | 3.0T Quattro Premium/Premium Plus/Prestige |
| 2008-2012 | Audi | S5 | 4.2 Quattro |
| 2013-2017 | Audi | S5 | 3.0T Supercharged Quattro |
Why Choose Torque Solution?
- Specializes in precision drivetrain components for European performance cars.
- CNC-machined from aircraft-grade materials for consistent quality.
- Backed by real-world testing on street and drag strip.
Frequently Asked Questions
-
Q: Will TS-RDI-860 fit my 2013 Audi S5 Quattro?
A: Yes it directly replaces the rear differential bushing on all 2008-2017 S5 Quattro models including 3.0T supercharged variants. -
Q: What material is the differential insert made from?
A: High-strength 6061-T6 billet aluminum with black anodizing for corrosion resistance and durability. -
Q: Does installation require special tools or warranty coverage?
A: Basic tools suffice for 30-minute install covered by limited lifetime warranty against defects.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact 6 x 4 x 2 inch box with foam protection
- Weight: 0.4 lbs
Differential Mounts
Differential mounts secure the differential housing to the chassis or subframe and control movement under acceleration, braking, and cornering. Stock rubber mounts isolate vibration but can deflect excessively on high-power builds, causing wheel hop, inconsistent traction, and accelerated driveshaft wear. Upgraded polyurethane or billet aluminum differential mounts sharpen throttle response and improve drivetrain consistency.Popular Differential Mount UpgradesPopular upgrades include Whiteline and SuperPro adjustable polyurethane rear differential mounts for Subaru WRX and STI, BMW E46 and E9x platforms, and Mitsubishi Evo and Eclipse AWD builds. Solid billet differential mounts are common for dedicated track cars where NVH is acceptable in exchange for maximum rigidity. Adjustable mounts allow rear differential position tuning for alignment correction on lowered vehicles.Will upgraded differential mounts cause extra noise?Firmer mounts transmit more drivetrain and road noise into t...
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