Driveshaft Flange Short. Porsche 991 GT2 RS / GT3 › 9G133220895

Driveshaft Flange Short

Maintain a secure connection between the gearbox and rear driveshaft with this replacement short driveshaft.

Fits:

• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
• Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

Diagram Ref No 14 

Mounted at the differential output, the flange provides the attachment point for the driveshaft, transferring engine power to the rear wheels.

Designed for compatible manual and PDK transmission assemblies, it is suitable for replacing damaged or worn original gearbox flanges.

What Does It Do?

The short driveshaft flange connects the gearbox differential to the inner driveshaft joint.

It transfers rotational force to the driven wheel while maintaining a secure connection during acceleration, braking and gear changes.

Why Is It Important?

A correctly fitted flange is essential for reliable power transfer, particularly on high-performance GT models.

A damaged flange may cause:

• Knocking or clunking under acceleration
• Excessive drivetrain vibration
• Movement at the driveshaft connection
• Additional wear to surrounding components

Why Do Driveshaft Flanges Fail?

Common causes include:

• Worn or damaged internal splines
• Repeated high-torque loading
• Loose or damaged mounting bolts
• Corrosion around mating surfaces
• Damage during gearbox servicing

When Should It Be Replaced?

Replace the flange if it shows cracking, distortion, damaged splines or excessive wear around the mounting points.

It should also be inspected during driveshaft replacement, differential repairs or gearbox refurbishment.

Installation Notes

Confirm the correct short flange specification for the vehicle's manual or PDK gearbox.

Inspect the differential output, retaining hardware, oil seals and driveshaft joint before installation.

Follow Porsche's specified fitting and tightening procedures.

Key Features

• Replacement short driveshaft flange
• For selected Porsche 991 GT2 RS, GT3 and GT3 RS models
• Suitable for applicable Porsche 992.1 GT3 models
• Manual and PDK gearbox applications
• Connects the gearbox differential to the driveshaft
• Supports secure drivetrain power transfer
• Replaces worn or damaged transmission output flanges
• Suitable for gearbox and driveshaft repairs

Short Driveshaft Flanges

Porsche 991 and 992 GT models use gearbox output flanges to connect the differential to the rear driveshafts. These components must withstand high torque loads while maintaining a secure mechanical connection.

Short driveshaft flanges are available for selected Porsche 991 GT2 RS, GT3, GT3 RS and 992.1 GT3 manual and PDK transmissions. Replacing worn or damaged flanges helps restore correct driveshaft mounting and reliable drivetrain operation.

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9G133220895

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