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GMG is proud to offer gearbox rebuilding for street or track.
Working with the top gearbox re-builder in the country we can provide everything from a standard
over-haul to a complete race rebuild.
Some of the gearbox services we offer:
- Porsche Factory rebuilds with updated syncros and gear sets
- Club Sport rebuilds for 996TT/GT2/GT3
- Shortened gears (3-4-5), or custom configurations (significantly improves the acceleration of your Turbo or GT3)
- 996 GT3 Cup and RS rebuilds and updates
- Limited Slip Differentials for street or track
- Ring and Pinion sets for street or track
Looking for something custom? Give us a call and we can supply you with a gearbox built to your exact needs. In the
meantime, please browse our drivetrain products listed below!
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Sport Clutch Kit - Carrera GT
Application: Carrera GT - All
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
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Level 1 Sport Clutch Kit - 997S
GMG Introduces its 997S Sport Clutch Kit. This kit is specifically designed
as a direct replacement clutch kit for 997S 3.8 liter cars. The factory 997S
3.8 has a stepped flywheel and the 996/997 3.6 clutch kit will not work. The
flywheel is made of billet aluminum and offers a replaceable friction area.
+50% reduction in weight over the stock flywheel (stock 24lbs/GMG 11.5 lbs)
and comes complete with pilot bearing, ring gear and torque plate in place.
The disc is a specially designed Sachs Race Engineering unit that is spring
loaded to minimize gear box noise (when removing the dual mass flwyheel) and
is full faced with metallic racing linings offering excellent wear
characteristics and added strength in high performance applications. The
pressure plate is also from Sachs Race Engineering and offers additional
clamping force. The kit is an ideal upgrade for a street car that is being
used for spirited driving, autocross, track event, club racing or high
horsepower applications.
Kit includes: GMG Lightweight flywheel, pilot bearing installed, ring gear
installed, torque plate, hardware, Sachs Race Engineering Pressure plate,
Full faced sport disc with metallic linings, Throw out bearing, hardware and
guide tube.
Fitment: 997S/C4S with 3.8liter engine only
Recommended for street cars and owners who want to minimize transmission main
shaft noise. Spring loaded disc acts as a damper in place of the dual mass
flywheel.
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
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Level 2 Sport Clutch Kit - 997S
GMG Introduces its LEVEL 2 997S Sport Clutch kit. This kit is specifically
designed as a direct replacement clutch kit for 997S 3.8 liter cars. The
factory 997S 3.8 has a stepped flywheel and the 996/997 3.6 clutch kit will
not work. The flywheel is made of billet aluminum and offers a replaceable
friction area. +50% reduction in weight over the stock flywheel (stock
24lbs/GMG 11.5 lbs) and comes complete with pilot bearing, ring gear and
torque plate in place. The disc is a specially designed Sachs Race
Engineering unit that is rigid and full faced with metallic racing linings
offering excellent wear characteristics and added strength in high
performance applications. The pressure plate is also from Sachs Race
Engineering and offers additional clamping force. The kit is an ideal
upgrade for a street car that is being used for spirited driving, autocross,
track event, club racing or high horsepower applications.
Kit includes: GMG Lightweight flywheel, pilot bearing installed, ring gear
installed, torque plate, hardware, Sachs Race Engineering Pressure plate,
Full faced sport disc with metallic linings, Throw out bearing, hardware and
guide tube.
Fitment: 997S/C4S with 3.8liter engine only
Recommend for street/track cars. Some transmission main shaft noise can be expected at idle with the
clutch disengaged with rigid disc applications. However you will experience
no clutch chatter. This is a level 2 upgrade
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
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GMG GAC Sport Clutch Kit for 996 3.6
Designed and tested for Grand Am Cup competition. Fully legal with 80% of stock
flywheel weight, 1 piece steel flywheel, 0 balance Sachs Race Engineering
Sport Pressure plate, 6 Puck Sport disc with metallic linings, T/O bearing
and all hardware included.
Ideal for anyone tracking their cars, club racing or Grand Am Cup racing.
Fits all 2 wheel and 4 wheel drive cars. Not recommended for street cars.
Applications: 996 3.6
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
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GMG GAC Sport Clutch Kit for 997 3.6 and 3.8
Designed and tested for Grand Am Cup competition. Fully legal with 80% of stock
flywheel weight, 1 piece steel flywheel, 0 balance Sachs Race Engineering
Sport Pressure plate, 6 Puck Sport disc with metallic linings, T/O bearing
and all hardware included.
Ideal for anyone tracking their cars, club racing or Grand Am Cup racing.
Fits all 2 wheel and 4 wheel drive cars. Not recommended for street cars.
Applications: 997 3.6 and 3.8
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
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GMG Sport Clutch Kit
GMG offers you performance clutch kits from Sachs Race Engineering utilizing our lightweight flywheels for added performance.
Kits include GMG Lightweight Flywheel, Sachs Race Engineering Full Faced Disc (no chatter), Sachs Race Engineering
Pressure Plate (rated up to 700hp for 996TT and GT2 applications), Sachs Release Bearing and new hardware for flywheel
and pressure plate. Our clutch kits are suited for street and track driving and offer virtually no chatter with the added
clamping force required by high-horsepower cars.
We also offer puk-style single, double and triple plate racing only clutches. Please inquire with your needs.
Applications: 993/TT, 996 C2/C4/C4S, 996 GT3/Cup, 996 TT/GT2, Boxster/S
Please contact us for pricing.
* Installation is available at our facility at an additional cost.
* Highly recommended for 996TT and GT2's making more than 575+ hp.
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GMG Lightweight Flywheel
GMG Lightweight Flywheels are designed with performance and
reliability in mind. Our flywheel is a great upgrade for any street car, and a must if you are tracking your car.
The factory dual mass flywheels weigh up to 26 lbs compared to our flywheels with a weight of
10-12 lbs. depending on your application. The reduced weight allows your engine to rev up and down
quicker, increasing horsepower and acceleration throughout the entire rev range. Add a sport clutch kit
and you have a combination that works. Best of all, our flywheels are designed to work with the factory original
clutch components.
Price and Fitment:
92-95 911 Turbo (11 lbs.) - $999.00
99-02 996 C2/C4 3.6 Non-Turbo (13 lbs.) - $989.00
97-02 Boxster 2.5/2.7$979.00
00-02 Boxster S - $979.00
01-04 996TT - $999.00
02-04 996 GT2 - $999.00
* Installation is available at our facility at an additional cost.
* Special pricing is available with the purchase of a clutch and flywheel package
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GMG 996 GT3 RS Sport Clutch and Flywheel
Kit includes:
- Lightened RS Spec Porsche Motorsport Flywheel
- Updated Sport Clutch Disc
- Sachs Race Engineering Pressure Plate
- Throw-out Bearing
- All Hardware
Applications: 996 GT3 Mk2
Price: $2599.00
Please inquire for your specific model.
* Installation is available at our facility at an additional cost.
* Triple plate racing clutch shown, actual kit is not pictured.
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Sachs Racing – RSR Triple Plate Clutch Kit
Kit includes:
- Flywheel
- Triple Plate Clutch
- Throw-out Bearing
- All Hardware
Applications: 993 TT/America/RS/RSR, 996 GT3/GT3 Cup/RS/RSR/WCGT, 997 Cup/RSR
Price: From $3400.00
Please inquire for your specific model.
* Installation is available at our facility at an additional cost.
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B & M Porsche Trak Shifters
We carry a full line of B & M Shifter products for your Porsche.
The B & M Porsche shifter kit is ideal for Porsche cup car racing and track days.
Fitment does not require any modifications and fits into the factory cradle. The Trak system
result in 10-30% shift throw reduction for more precise shifts.
Applications: Cayman, Boxster/S, 996 C2/C4/C4S, 996GT3, 996TT/GT2
Price: From $199.00
* Installation is available at our facility.
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B & M Porsche Short Shifter
The B & M Porsche Short Shift Kit inlcudes:
- Enhances the factory shifter
- Adjustable shift throw reduction
- Machined billet aluminum components
- Anodized for corrosion protection
Applications: Cayman, Boxster/S, 996 C2/C4/C4S, 996GT3, 996TT/GT2
Please contact us for pricing.
* Installation is available at our facility.
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* Please note: Prices are subject to change without notice. Please call for current pricing.
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