Drivetrain Differentials and Rear-End Components

Fiat

Gear Type LSD

$976.00

SKU: C510

In Stock
In Stock
Ships by Aug 2
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The RSX Torsen (Gear-Type) LSD is engineered to be a maintenance-free upgrade for the Fiat C510 gearbox, utilizing helical gears for smooth and progressive torque transfer. Its construction involves FORGED Nickel-Chromoly steel with advanced heat treatments like super sub-zero, shot peening, and WPC to achieve superior surface hardness, strength, and durability, making it suitable for high-torque applications. This limited-slip differential is ideal for a range of uses, from street driving where it enhances traction and stability, especially in adverse weather, to track days and performance driving for improved cornering speed and acceleration. It is also highly recommended for motorsport applications like circuit racing, rallying, autocross, and drag racing due to its reliable and predictable performance. Key benefits include eliminating clutch or plate wear, providing smooth torque distribution without sudden locking, and offering a significant improvement in lap times compared to open differentials. The design enhances traction and cornering speed, mitigating understeer in FWD cars and oversteer in RWD cars. The Fiat C510 gearbox is compatible with numerous Fiat, Lancia, and Alfa Romeo models, including Abarth 500/595/695, various Fiat Uno, Punto, Tipo, Bravo/a, Marea, Stilo, Multipla, Palio, Siena, Coupe, Barchetta, Strada, and Doblo variants, as well as Lancia Delta, Lybra, Musa, and Ypsilon, and Alfa Romeo 145/146/147, 155/156, Spider, GTV, and GT models. However, it is crucial to note specific fitment details: Fiat Uno Turbo models with a catalytic converter (100/101HP) ONLY fit later Mk1 with the C510 gearbox and DO NOT fit early Mk1 with the C506 gearbox. Additionally, Uno Turbo models WITHOUT a catalytic converter (105HP) require a modified crown wheel (fiat 128 style gearbox). RSX Racing Solutions offers a 5-year motorsport warranty on this Torsen/Gear-Type LSD. For installation, it is recommended to use OE or fully synthetic gear oil without shockproof additives or friction modifiers. Gear oil should be added to the LSD during assembly, as the anti-rust oil used during factory assembly has no lubrication function.

MIA's Description

The Fiat C510 gearbox Gear Type LSD is a Torsen limited-slip differential designed for performance enhancement. It features a gear-type design with no clutches or plates, offering maintenance-free operation and smooth, progressive torque transfer. This LSD is constructed from FORGED Nickel-Chromoly steel with special heat treatments for increased surface hardness, strength, and durability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFiat
Part NumberC510
CategoryDrivetrain

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy