GKTech Nissan 240sx/Skyline diff brace for 350Z/370Z diff conversion

The GKTech Differential Brace is specifically designed for S-chassis and RWD Skyline owners who have swapped in a 350Z or 370Z differential. While the Z33/Z34 diffs are a popular upgrade for strength and availability, their factory mounting style differs from the original chassis—often relying on a single rear stud, which can flex or fail under load. This brace ties the Z33/Z34 diff into the subframe properly, eliminating flex and locking down the drivetrain.

Constructed from TIG-welded steel and finished in a durable e-coated black, this bolt-on solution ensures your diff stays put during hard launches, clutch kicks, or long sweepers—without any guesswork or fabrication.

Key Features:

• Made for Z33/Z34 Diff Swaps: Allows proper fitment and support when installing 350Z/370Z differentials into S-chassis or RWD Skylines

• Eliminates Diff Movement: Prevents flex and wheel hop under heavy load

• Bolt-On Design: No cutting or welding required; utilizes existing mounting points

• Durable Construction: TIG-welded steel with corrosion-resistant e-coating

Specifications:

• Material: TIG-welded steel

• Finish: E-coated (black)

• Install Time: Approximately 15–30 minutes

Compatibility:

• Nissan 240SX (S13 / S14 / S15) – with 350Z/370Z diff conversion

• Nissan Skyline R32 / R33 / R34 (RWD only) – with 350Z/370Z diff conversion
  Designed specifically for Z33/Z34 differential conversions. Will not fit OEM S/R chassis diffs.

What’s Included:

• (1) Differential brace

• (1) Mounting hardware kit

Notes:

• Only compatible with 350Z and 370Z differentials installed into S/R chassis

• Professional installation recommended for best fit and performance

• Not compatible with 4WD or HICAS-equipped models

If you're running a Z33 or Z34 diff in your S-chassis or Skyline, don't let weak mounts be the limiting factor—secure it properly with the GKTech Diff Brace and drive with confidence, on track or on the street.