Peugeot - Citroën MCM 6-Speed Gearbox Plate-Type LSD

Description and Applications

The RSX Ultralightweight (4.25 kg) Plate-Type LSD is designed for PSA MCM gearboxes, also known as MC6, MC 6-speed, and BVM (Boîte de Vitesses Manuelle) MC6 in France. These gearboxes are paired with PSA 1.6L THP turbo engines and can be found in Peugeot, Citroën, and the 2nd-generation BMW Mini models:

• Citroën DS3 & DS3 Racing
• Peugeot 207 1.6 THP GT & 207 RC
• Peugeot 208 GT, 208 GTi
• Peugeot 308 GTi
• Peugeot RCZ 200 & RCZ-R
• BMW Mini Cooper S / JCW 1.6 THP/Prince Turbo (2nd Generation - R55, R56, R57 & R60)

Key Features & Benefits

✔ High-Performance Forged Construction
Our Plate-Type LSDs are precision-crafted from FORGED Nickel-Chromoly steel and undergo specialized heat treatments, including Super Sub-Zero Cryogenic Treatment. Additionally, they are subjected to shot peening and WPC treatments to reinforce both core and surface strength, significantly increasing wear resistance and extending service life.

✔ Optimized Lubrication & Weight Reduction
The use of large oil windows and multiple holes improves internal lubrication, minimizes friction, and enhances fatigue strength. These design elements, combined with high-strength materials and advanced treatments, contribute to significantly reduced overall weight, making it the lightest plated LSD on the market at just 4.25 kg.

✔ Exceptional Longevity & Performance Stability
Our LSDs offer extended durability, typically requiring no servicing during the first 2,000 km of special stages. They deliver consistent performance with stable preload values, making them ideal even for endurance racing.

Technical Specifications

✔ Industry-Leading 12 Friction Plate Design
These plated LSDs stand out as the only product on the market featuring a 12-friction-plate design, offering enhanced traction and superior consistency throughout extended use.

✔ Dual Ramp Body for Customizable Handling
As with all our plated LSDs, we use dual ramp bodies. The factory-spec version for this application features 35/65 & 45/60 ramp angles, with additional ramp angles available upon request.

✔ Extras Included – Free of Charge
We include, at no additional cost:

• A set of High-tensile steel (12.9-grade) ring gear/crown wheel bolts for a secure and reliable installation.
• An extra, thicker Belleville/conical washer for those who wish to experiment with higher preload values, commonly used in gravel events.

✔ Motorsport-Grade Reliability – 1-Year Warranty
As a testament to our quality and reliability, we offer a 1-year motorsport warranty against material and manufacturing defects across our entire range of Plate-Type LSDs.

Important Reminder:

We recommend using gear oils with shockproof additives or friction modifiers, commonly labeled as "LS" (Limited Slip) gear oils, specifically for plate-type LSDs.

The most common SAE grade is 75W-140 LS and only with LS specifications if a plate-type LSD is installed.

It is also advisable to add gear oil directly to the LSD during installation into the gearbox. Please note that although we apply anti-rust oil during assembly at our factory, it does not provide lubrication.

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