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- Porsche 356 1950-55
Fits:
all early Porsche 356 through 1955 (single mount transmission)
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
35620515
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.6L 09/01-2005
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- 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 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Sold as a set with (2) bushings included per kit to complete a single car.
Type: Racing / Motorsport
Fits:
Porsche 996 C2 / C4 / C4S 2002-2005 TIPTRONIC only
Porsche 996 Turbo 2001-2005 MANUAL & TIPTRONIC
Porsche 996 GT3 MKI & MKII 2000-2005 MANUAL only
Porsche 997 C2 / C4 / C2S / C4S TIPTRONIC only
Porsche 997 Turbo MKI 2006-2009 MANUAL & TIPTRONIC
Porsche 997 Turbo MKII 2010-2013 MANUAL only
Porsche 997 GT3 MKI & MKII 2007-2013 MANUAL only
HD transmission mounts replace your OEM transmission carrier bushings with our 25% stiffer bushings**. These units install the same as factory bushings and will eliminate clunks and driveline slop often associated with original rubber units. These high quality units feature aluminum center bushings and splined outer races filled with harder durometer rubber for perfect fitment and long service life. A perfect answer for those who want less driveline play but don't want harshness associated with semi solid and solid mounts.
Fits inside Porsche OE part 99737503303, or 99637503303
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99737503303
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
The OE Match Rear Gearbox Mount is a replacement transmission mounting component designed for the extension housing of Porsche 996 manual gearboxes.
Fits:- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
The gearbox mount supports and locates the transmission within the vehicle while using its rubber-isolated construction to absorb vibration and driveline movement. It allows a controlled amount of movement while preventing the gearbox from shifting excessively under acceleration, braking, gear changes and changing engine loads.
A healthy gearbox mount is important for maintaining correct drivetrain alignment and preventing unwanted movement from being transmitted into the chassis. As the original rubber deteriorates with age, heat and repeated loading, the mount can soften, crack or separate, allowing excessive gearbox movement.
What This Product Does:
- Supports and locates the gearbox within the vehicle.
- Connects the transmission extension housing to its mounting structure.
- Controls excessive transmission movement under load.
- Absorbs vibration generated by the engine and drivetrain.
- Helps isolate drivetrain vibration from the vehicle body.
- Maintains more consistent drivetrain alignment.
- Reduces movement during acceleration and deceleration.
- Helps maintain a more precise feel during gear changes.
- Reduces stress on surrounding drivetrain components and mountings.
- Replaces an original mount that has softened, cracked or deteriorated.
The rubber section of the mount is designed to provide a balance between securely supporting the gearbox and isolating normal drivetrain vibration from the chassis.
Symptoms Of Wear Or Failure:
A deteriorated gearbox mount can allow the transmission to move more than intended. Possible symptoms include:
- Clunking or knocking during acceleration or deceleration.
- Excessive drivetrain movement when applying or releasing the throttle.
- Increased vibration through the cabin.
- Vibration through the gear lever.
- Movement of the gear lever as engine load changes.
- Harshness when pulling away.
- Increased noise during gear changes.
- A noticeable thump when changing gear.
- Reduced precision or consistency when shifting.
- Drivetrain vibration at certain engine speeds.
- Contact or rattling from nearby exhaust or drivetrain components.
- Visible cracking or splitting of the rubber mount.
- Rubber separating from the metal mounting sections.
- Sagging or distortion of the mount.
- Excessive gearbox movement when inspected.
These symptoms can also be caused by engine mounts, transmission components, suspension parts or other drivetrain issues, so the mounting system should be properly inspected before replacement.
Why Replacement Matters:
Gearbox mounts operate continuously under the weight and movement of the transmission while also dealing with torque reactions from the engine and drivetrain.
Over time, repeated loading, heat and ageing can cause the rubber element to harden, soften, crack or separate. Once the mount can no longer control gearbox movement effectively, the transmission may move excessively when engine torque is applied.
This can result in increased vibration, knocking noises and a less precise drivetrain feel.
Replacing a worn gearbox mount helps:
- Restore controlled gearbox movement.
- Reduce knocks and clunks from the drivetrain.
- Reduce unwanted vibration.
- Improve drivetrain stability.
- Maintain more consistent gearbox alignment.
- Improve gear-change feel.
- Reduce unnecessary movement of the gear lever.
- Protect surrounding mountings and drivetrain components.
- Restore the refinement expected from the vehicle.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99637505505
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
Sold as a set with (2) bushings included per kit to complete a single car.
Type: Road use
Fits:
Porsche 996 C2 / C4 2002-05 TIPRTONIC
Porsche 996 TURBO 2001-05
Porsche 996 GT3 2000-05
Porsche 997 C2 / C4 2005-08 TIPTRONIC
Porsche 997 TURBO 2007-09
Porsche 997 TURBO 2010-12 (G97.55)
Porsche 997 GT3 2007-11 (G97.90)
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99737503303KIT
The product you are viewing cross references to these numbers