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356 928 |
California
Motorsports Inc. 928-855-5755 |
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PORSCHE G50 5 SPEED
TRANSMISSION (prices and availability are subject to change
without notice) |
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TRANSMISSION SPECIFICATION ·
Type:
G50/00, G50/01, G50/02 ·
Original equipment for: Porsche 911 Carrera 1987-1989 ·
Description: H Pattern 5 speed manual transaxle with
Borg Warner single cone synchromesh and synchronized reverse ·
Limited Slip Differential: 40% LSD optional equipment ·
Weight (approx): 146lbs ·
Oil Capacity (approx): 3L API classification GL5 75/90 ·
Speedometer: Electric speedometer/hall sensor ·
Trans controls: Rod linkage ·
Clutch:
Hydraulically assisted pull clutch, 240mm single plate ·
1st gear 3.500 (3.154 G50/02) ·
2nd gear 2.059 (1.895 G50/02) ·
3rd gear 1.409 (1.333 G50/02) ·
4th gear 1.13 (1.074 G50/00)
(1.036 G50/02) ·
5th gear 0.89 (0.861 G50/00
and G50/02) ·
Final drive 3.44, 7.5” Gear chart, G50/01 stock gears |
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TRANSMISSION SPECIFICATION ·
Type:
G50/50 ·
Original equipment for: Porsche 911/930 Turbo, 1989 only ·
Description: H Pattern 5 speed manual transaxle with
Borg Warner single cone synchromesh and synchronized reverse ·
Limited Slip Differential: 40% LSD optional equipment ·
Weight (approx): 156lbs ·
Oil Capacity (approx): 3.7L API classification GL5 75/90 ·
Speedometer: Electric speedometer/hall sensor ·
Trans controls: Rod linkage ·
Clutch:
Hydraulically assisted pull clutch, 240mm single plate ·
1st gear 3.154 ·
2nd gear 1.789 ·
3rd gear 1.269 ·
4th gear 0.967 ·
5th gear 0.767 ·
Final drive 3.44, 9” Gear chart, G50/50 stock gears |
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TRANSMISSION SPECIFICATION ·
Trans type: G50/03, G50/04, G50/05 ·
Original equipment for: Porsche 911/964 Carrera 2, 1990-1994 ·
Description: H Pattern 5 speed manual transaxle with
Borg Warner single cone synchromesh and synchronized reverse ·
Limited Slip Differential: 40% LSD optional equipment ·
Weight (approx): 146lbs ·
Oil Capacity (approx): 3.6L API classification GL5 75/90 ·
Speedometer: None ·
Trans controls: Rod linkage ·
Clutch:
Hydraulically assisted pull clutch, 240mm single plate ·
1st gear 3.500 ·
2nd gear 2.059
(1.90 G50/04) ·
3rd gear 1.407
(1.33 G50/04) ·
4th gear 1.086
(1.03 G50/04) ·
5th gear 0.868 ·
Final drive 3.444, 7.5”
(3.33 G50/05) Gear chart, G50/03 stock gears |
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TRANSMISSION SPECIFICATION ·
Type:
G64/00, G64/01 ·
Original equipment for: Porsche 911/964 Carrera 4 AWD, 1989;
1991-1994 ·
Description: H Pattern 5 speed manual transaxle with
Borg Warner single cone synchromesh and synchronized reverse ·
Limited Slip Differential: Variable (0-100%) with longitudinal lock ·
Weight (approx): 176lbs ·
Oil Capacity (approx): 3.8L API classification GL5 75/90 ·
Speedometer: None ·
Trans controls: Rod linkage ·
Clutch:
Hydraulically assisted pull clutch, 240mm single plate ·
1st gear 3.500 ·
2nd gear 2.118 ·
3rd gear 1.444 ·
4th gear 1.086 ·
5th gear 0.868 ·
Final drive 3.44, 7.5” Gear chart, G64/00 stock gears |
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TRANSMISSION SPECIFICATION ·
Type:
G50/52 ·
Original equipment for: Porsche 911/930/965 Turbo, 1991-1994 ·
Description: H Pattern 5 speed manual transaxle with
Borg Warner single cone synchromesh and synchronized reverse ·
Limited Slip Differential: 20/100% LSD standard equipment ·
Weight (approx): 156lbs ·
Oil Capacity (approx): 3.7L API classification GL5 75/90 ·
Speedometer: None ·
Trans controls: Rod linkage ·
Clutch:
Hydraulically assisted pull clutch, 240mm single plate ·
1st gear 3.154 ·
2nd gear 1.790 ·
3rd gear 1.269 ·
4th gear 0.967 ·
5th gear 0.767 ·
Final drive 3.44, 9” GEAR CHART-STOCK GEARS G50/52 |
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CMS G50 TRANSMISSION REBUILDING, REPAIR AND
MODIFICATION SERVICES We offer a variety of services for your Porsche G50 transmission
and would be happy to send you a quotation for any project however large or
small! ·
Full transmission inspection ·
Full transmission overhaul ·
Ring and pinion setup ·
Gear change ·
Differential setup ·
LSD rebuild ·
Race prep ·
Prepare for inverted use ·
Shorten bell housing and input shaft ·
Re-register bell housing ·
Cut DME provisions in bell housing ·
Bore repair bell housing and center case ·
Main shaft straightening ·
Dog ring replacement, gear spot welding
and honing ·
Internal spray bar oiling system ·
Custom MIG and TIG welding ·
Surface grinding ·
Throw Out Bearing boss/clutch release
fork pivot shaft boss repair |
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ALBINS G50 BILLET SHIFT FORKS (all models) The original forks are cast and sometimes break or
will simply wear out. The roll pin
provisions are also known to wear out causing failure. Billet forks are stronger, more reliable and are
commonly used in factory race transmissions. ·
1st/2nd billet
aluminum shift fork $495 ·
3rd/4th billet
steel shift fork $595 |
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Speed sensor
version for 87-89
Non speed
sensor version for 90-94
Turbo version
for 91-94 |
CMS G50 BILLET SIDE COVERS (all models) The original differential side cover is made of cast
aluminum. Under load there can be a
tremendous force applied to this cover, and it can break, sometimes resulting
in a damaged ring and pinion-or worse. Upgrading to a billet side plate will add strength
and increased reliability to the differential section. Our design features include: ·
A provision for the OEM speed sensor for
early models ·
An oil passageway for diff bearing ·
Uses the standard taper bearing, radial
seal and O-ring ·
The turbo version further incorporates a
thrust screw to reduce ring gear deflection under load Pricing: ·
G50 billet side plate for 87-89 911 $425 ·
G50 billet side plate for 90-94 964 C2 $425 ·
G50/52 billet side plate for 91-94 965 C2 Turbo $499 Installation
instructions |
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CMS G50 BILLET T.O.B. (THROW OUT BEARING) BOSS
REPAIR It’s not uncommon for the bosses that capture the
pivot shaft for clutch release fork to crack or break off rendering your
clutch inoperable. We can
professionally repair your bell housing for a fraction of what it costs to
replace the housing or the transmission! Our new design allows the billet bosses to be
reattached to the housing without welding!
You will not find a cleaner more professional repair on the market
today. $699 (not including teardown and reassembly
labor of the transmission) |
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CMS G50 BILLET SIDE SHIFTER CONVERSION (all models) This patent pending design moves the main shift
shaft to the side of the transaxle case allowing for a neat and tidy way of
attaching shift cables. Perfect for
some mid-engine installations and especially where space is limited behind
the transmission. Shift cables can be attached or retrofitted to a
variety of shifters including the CMS billet cable shifter. ·
$999 (installed price) ·
$899 kit price (requires your gear housing and shift shaft) |
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CMS G50 BILLET END CAP CONVERSION (all models) This conversion was originally designed for custom mid-engine
installations, and is useful when installation space is limited as it will
yield approx ˝ inch of additional clearance at the tail of the gearbox.
The end plate is available in two versions, with and without the provision
for the shift shaft. This also works well for some rear engine
applications. The conversion (excluding C4) requires a different tail
housing to be used. $495 |
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ALBINS G50 GEARS (all models excluding Carrera 4 with G64/00 or
G64/01) Stock gear ratios are designed for drivability and
fuel economy and not necessarily for best performance. Whether you have a stock motor or one that has been
tuned your transmissions’ gear ratios may not be optimum for your driving
needs. Optimizing your gears to match
your engines’ power curves can make a huge difference on the track, often
resulting in reduced lap times, and can give the sensation that there has
been a gain in power. Alternative gear
ratios can make the car more fun to drive or be more drivable. We carry a wide selection of OEM and Albins gears to suit a variety of applications. ·
1st gear set (weld
on type; requires core OEM input shaft; requires additional labor-not
included in price) $995 ·
2nd gear set $995 ·
3rd, 4th or 5th gear set $995 G50 gear list
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ALBINS G50 RING AND PINIONS (all models excluding Carrera 4 with G64/00 or
G64/01) The overall gearing in your transaxle can be reduced
or increased with alternative ratio final drive gears. We offer OEM replacement sets as well as Albins made
sets-and in ratios that the factory never produced. These high quality hypoid gear sets are
produced on the same cutting equipment and with the same design as OEM. Ratios currently available are: ·
Albins 3.10/10:31 (special ratio for V8
and turbo applications) $3025 ·
Albins 4.00/8:32 (improved
street/autocross/track ratio) $3025 ·
Albins
4.00/8:32 for G50/50 (improved street/autocross/track ratio) $3375 Gear chart, G50/01 with 3.10 Gear chart, G50/01 with 4.00 Break in recommendations |
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KAAZ G50 LIMITED SLIP DIFFERENTIALS Help put your power to the ground more effectively
and add stability with a limited slip.
This is an improvement for a street car and a must for track car.
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1.5 way
asymmetrical ramps or 2 way symmetrical ramps available, allowing for 12
possible internal settings total
Rebuild parts and services are also available. $1695 |
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ALBINS G50 BILLET AXLE FLANGES With big power and/or under extreme conditions the
output flanges on your transaxle can be a weak link. We have available Albins precision machined
case hardened billet axle flanges which have been a proven product in off
road racing for many years. These
flanges also promote more angular irregularity than the standard flanges with
deeper cups. Note: Not for use with standard CV grease caps $299 each |
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G50 STEEL SYNCHRO RINGS (all models) These GENUINE factory race parts provide a greater coefficient of
friction, handle shock loads better, shift quicker and are more heat resistant
than standard brass rings. As found in
RS Euro, RSR, GT2 and GT3 transmissions. ·
1st or 2nd
steel ring $320 each ·
3rd, 4th or 5th steel ring $301 each |
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ALBINS G50 SYNCHRO TEETH Sometimes termed as dog ring or synchro hub, these are the teeth that the shift sleeve or “slider” engages into. If you have a
bad synchronizer ring and if you have been grinding going into gear-you
probably need to replace this part. Another symptom is that your transmission
won’t stay in gear. These are a direct replacement for both
OEM and Albins gears. ·
1st/2nd dog ring $199 each ·
3rd/4th/5th
dog ring $199 each Fits Porsche G50 5 speed transmissions
87-94 C2/C4/Turbo |
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ALBINS
HEAVY DUTY CHANGE LEVER PIVOT SHAFT Replaces
part number 950.303.134.01 and will not shear like the original part often
does. If a failure should occur, you cannot
shift the gearbox. $150 |
