Drivetrain Differentials and Rear-End Components

Guard

Billet Chromoly Differential with Asymmetrical Ramps

$2,000.00

SKU: Cayman S Pro

In Stock
In Stock
Ships by Aug 1
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This unit boasts a robust CNC billet 4340 chromoly body, renowned for its exceptional strength and durability under demanding conditions. Its design incorporates asymmetrical ramps and proprietary clutches, allowing for a high degree of adjustability and tunability to precisely match the needs of both weekend track day enthusiasts and professional race teams. Guard Transmission focuses on Porsche-specific applications, with each LSD configured for a single customer's exact chassis, skill level, and power output. This tailored approach, backed by two decades of Porsche transmission experience, ensures optimal performance. The 'Pro' variant features a hardened 4340 Chromoly billet body and an 8620 cover, with multi-disc clutch configuration. For comparison, the 'Club' variant uses a 1045 Billet body, which is still significantly stronger than standard Porsche or ZF LSDs. All Guard LSDs come standard with 4 friction discs, with 6 or 8 disc options available. This specific Cayman S Pro model is designed for the Cayman S and Boxster S models equipped with a 6-speed manual transmission, from 2005 onwards.

MIA's Description

It features a CNC billet 4340 chromoly body for strength and durability. The asymmetrical ramps and proprietary clutches offer adjustability and tunability for various driving needs.

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

BrandGuard
Part NumberCayman S Pro
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