Flex disc (upgraded) for cardan driveshaft. Porsche 996 C4 / C4S / turbo / 997 C4 / C4S / turbo  ❭  99642101000

No need to buy the entire shaft assembly any longer. Simply replace your worn out piece with our inexpensive high quality flex disc.
Direct-fit upgraded replacement for the rear flex disc (guibo) on AWD Porsche 996 Carrera 4, 4S and Turbo models. OEM cross-reference PCG42102001. Rubber body with metal bushings to isolate driveline vibration while transmitting torque smoothly. Perfect when your original guibo shows age, cracking, or causes driveline vibration/clunks.

 
Compatible for: 

• ·         Porsche 996 C4 3.4L 1997-08/01
• ·         Porsche 996 C4 3.6L 09/01-2005
• ·         Porsche 996 C4S 3.6L 09/01-2005
• ·         Porsche 996 TURBO 2000-05
• ·         Porsche 996 GT2 2001-05
• ·         Porsche 997 MK1 Carrera 2 3.6L 2005-08
• ·         Porsche 997 MK1 Carrera 2S 3.8L 2005-08
• ·         Porsche 997 MK1 Carrera 4 3.6L 2005-08
• ·         Porsche 997 MK1 Carrera 4S 3.8L 2005-08
• ·         Porsche 997 MK1 TURBO 2007-09
• ·         Porsche 997 MKII Turbo 2010-13

Why you should replace the flex disc

• Worn rubber = vibration & driveline shock. The flex disc isolates rotational forces, as the rubber hardens, cracks or tears, it transmits vibration and can produce shuddering at idle/low speeds or a clunk during acceleration. Owners commonly report these symptoms before a failure.
• Prevents secondary damage. A failed flex disc can allow excessive play between the driveshaft and transmission flange, stressing flange bolts, the driveshaft and the transmission output — leading to far more expensive repairs.
• Affordable, quick fix vs replacing the whole shaft. Replacing this single part is significantly cheaper than replacing the full cardan/driveshaft assembly and restores NVH and drivability.

Common issues / failure signs

• Noticeable vibration through the car (often at certain speeds or under acceleration).
• Clunking or knocking from the center/rear when accelerating from low speed or shifting — typically caused by lost rubber compliance or torn bores.
• Visible cracking, chunks missing, or separation of the rubber around the bolt bores (inspect visually with the car safely supported). Micro-cracks can quickly grow into failure.
• Corroded or stretched mounting hardware — always inspect/replace bolts and washers when servicing the guibo.

Fits to No 8 on the diagram.

Related reference numbers
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99642101000

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