The Greddy Differential Cover is a high‑capacity rear differential cover designed to upgrade the stock differential housing on the 86/BRZ. It’s engineered to improve the performance and durability of the differential, especially for vehicles equipped with a limited‑slip differential (LSD) or used in higher‑stress driving conditions such as spirited street driving, autocross, or track use.
The Greddy differential cover is a premium upgrade for owners who want to improve differential fluid capacity, cooling, and overall durability. Its thoughtful design includes provisions for optional cooling accessories and retains key OEM features while adding performance‑driven enhancements.
Increased Oil Capacity: Boosts differential oil volume from the factory ~1.15 L to approximately ~1.90 L (+750 cc), increasing the thermal mass of the fluid and helping reduce operating temperatures.
Cast Aluminum Construction: Durable and lightweight housing that replaces the OEM cover, providing both structural strength and improved heat dissipation.
Internal Baffle Plate: Stainless steel baffle helps control differential fluid movement under acceleration, braking, and lateral loads to maintain lubrication where it’s needed.
Offset Design: Provides improved exhaust clearance for easier installation on certain chassis layouts.
Additional Ports:
Provision for attaching a rear differential oil cooler (M18 P1.5)
Port for a 1/8 PT temperature sensor
Retains the factory breather fitting
Included Hardware: Comes with a Greddy 5000G neodymium magnetic drain bolt (MD‑04, M16‑P1.5), which helps attract and hold metal particles.
*Compatible with external differential fluid cooler.
