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- 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
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 , 9, 13 on the diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99642101000
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This kit is comprised of the following items:
