CMS

Finally, conversion axle flanges for early 911s and 914s. These are machined in house from 4340 billet steel and heat treated.

Our custom "coarse spline/18 spline" drive flanges will allow 930 or G50 CV joints (with metal grease caps) to bolt up to the early 1969-75 911s and all 914 transaxles.

Shaft length was designed with the stock open diff in mind. If by off-chance you have a factory LSD, spacers will be required.

Sold in pairs.

Fits
Porsche 911 - 1969 to 1975
Porsche 914

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CMS.914.18T

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This 2mm spacer ring allows for a much easier setup when retrofitting some differentials and or crown wheel and pinions within the 915 family.

Note
Longer ring gear bolts may be required

The 993 transmission side cover is popular for kit car and V8 applications. It will not flex and minimizes gear misalignment under load. Machined in house from 6061 aluminum billets.

Fits:

Porsche 964 C2 '90-'94 with G50/03, G50/05 transmission

G50/21 transmission.

Porsche 993 C2 & C4 '95-'98 with G50/20, G64/20 transmission

Replaces part numbers: 950.301.312.06, 950.301.312.07

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95030131207

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CMS billet aluminum fork is heavier duty compared to street and is less expensive than Motorsport.

✓ Proper rail to fork interference fit
✓ Perfect roll pin provision
✓ Substantial surface area to shift sleeve
✓ Maintains correct tolerances

Fits all 996T, 996 & 997 GT2 & GT3 including RS and synchromesh CUP

G96/50, G96/88, G96/90, G96/93, G96/96, G96/97, G97/88, G97/90, G97/92

Replaces part 996.303.111.51

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99630311151

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Currently spare parts are not yet available from your Porsche dealer for your 2005 and later model 987 Boxster S 6 speed transmission. We however are one of the few companies that can provide OEM spare parts.

2nd gear repair kit consisting of
- 2nd gear wheel, 41 tooth (20:41)
- 1st/2nd shift sleeve
- 2nd gear synchros (3 part)

987 2nd gear
987 1st/2nd shift sleeve
987 1st or 2nd synchros
987 3rd-6th synchros
987 3rd/4th shift sleeve
987 5th/6th shift sleeve

Fits all G87/20 transmissions.

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01X311300

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It's not uncommon for one or both bosses that capture the pivot shaft for clutch release fork to crack or break off rendering your clutch inoperable. This is a repair kit and will require some machine work and a strip and rebuild to professionally repair your bell housing for a fraction of what it costs to replace the housing or the entire transmission. 993 bell housings remain no longer available.

Our current version uses hardware to reattach the new bosses rather than welding making future replacement much easier. This is the cleanest repair in the industry.

Uses the current version pivot shaft and fork assembly.


For all G50, G64, 993, 996T/997T, 996/997 GT2/GT3 transmissions.

G50, G50/00, G50/01, G50/50, G50/03, G50/04, G50/05, G50/52, G64/00, G64/01, G50/20, G50/21, G50/31, G50/32, G50/33, G64/51, G64/52, G96/50, G96/88, G96/90, G96/92, G96/96, G96/97, G95/50, G97/88, G97/96

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CMS.G50.TOBR

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Direct replacement for Porsche part 519.20.246 our 3rd/4th shift fork is an excellent reproduction made in house from 6061 T6 billet aluminium.

Our design features a replaceable steel threaded insert for the bolt in the event the threads should ever strip.

Fits all 356 transmissions.

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51920246

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Direct replacement for Porsche part 519.20.245 our 1st/2nd shift fork is an excellent reproduction made in house from 6061 T6 billet aluminium.

Our design features a replaceable steel threaded insert for the bolt in the event the threads should ever strip.

Fits all 356 transmissions.

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51920245

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A great way to return oil back to your 968 transaxle and better lubricate your input shaft gears at the same time.

Comes with custom -8AN fitting, O ring and set screws.

For those who wish to add strength to their 968 transaxle - we offer our billet aluminum side cover complete with ring gear thrust bolt, nut and washer. Uses factory hardware and seals.

For all Porsche 968 6 speed transmissions '92'-'95. (G44/00, 01E)

Our design features include:

A ring gear thrust bolt to reduce ring gear deflection under load
Cross drilled oil passageways for the differential bearing

Replaces part 01E.409.131A

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01E409131A

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Billet shift fork is a suitable replacement for 016 311 575C but does not include the shift rod. The 5th/reverse shift fork is no longer available from the dealer.

Fits all Porsche 924/944 5 speed transaxles 80-91. 924, 924S, 944, 944S, 944S2, 944T

5Y, 5S, 5Z, 7V, 5P, UY, 9U, AGP, AGR, AOR, AOS, AOT, ASG, ASH, VX, VR, UV, MD, ME, MF, MB, MX

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016311575C

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Billet shift fork is a suitable replacement for 016 311 561A.

Fits all Porsche 924/944 5 speed transaxles 80-91. 924, 924S, 944, 944S, 944S2, 944T

5Y, 5S, 5Z, 7V, 5P, UY, 9U, AGP, AGR, AOR, AOS, AOT, ASG, ASH, VX, VR, UV, MD, ME, MF, MB, MX

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016311561A

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Billet shift fork is a suitable replacement for both 016 311 549A and 016 311 549C (currently NLA) as it does not include the shift rail and driver.

Fits all Porsche 924/944 5 speed transaxles 80-91. 924, 924S, 944, 944S, 944S2, 944T

5Y, 5S, 5Z, 7V, 5P, UY, 9U, AGP, AGR, AOR, AOS, AOT, ASG, ASH, VX, VR, UV, MD, ME, MF, MB, MX

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016311549A

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Direct replacements for Porsche 997.1 6 speed manual. The plastic pads are a known issue on factory forks and even more so for a race box.
Ours are designed without.

G97.01, G97.31

Part Numbers
99730311100/1 1st/2nd
99730311300/1 3rd/4th
99730311500/1 5th/6th

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99730311500

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Direct replacements for Porsche 997.1 6 speed manual. The plastic pads are a known issue on factory forks and even more so for a race box.
Ours are designed without.

G97.01, G97.31

Part Numbers
99730311100/1 1st/2nd
99730311300/1 3rd/4th
99730311500/1 5th/6th

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99730311300

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Billet aluminium shift fork is a direct replacement for the fork on assembly part number 996.303.015.00

Fits all 996 C2/C4 6 speed transaxles G96.00, G96.01, G96.30

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99630301500

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Billet aluminium shift fork is a direct replacement for the fork on assembly part number 996.303.013.00.

Fits all 996 C2/C4 6 speed transaxles G96.00, G96.01, G96.30

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99630301300

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Introducing our newest side cover for Porsche Boxster and Cayman 987 6 speed transmissions. Machined in house from 6061 T6 Aluminium.

Fits all models 2005 on* G87.20, G87.21, G87.10

*Let us know which differential you are using. We may have to modify the supplied bearing.

Billet aluminium shift fork is a direct replacement for the fork on assembly part number 986.303.015.00.

Fits all Boxster S 6 speed transaxles G86.2

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98630301500

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Billet aluminium shift fork is a direct replacement for the fork on assembly part number 986.303.013.00.

Fits all Boxster 6 speed transaxles G86.20

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98630301300

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Billet aluminium 1st to 2nd gear shift fork is a direct replacement for the fork on assemblies 996.303.010.00 and 986.303.010.00.

Fits
Porsche 986 Boxster S 2000-04 (6 speed)
Porsche 996 1999-2004

G86.20, G96.00, G96.01, G96.30

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99630301001

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Replacing part for 911.301.221.00 (no longer available). Made in house from billet 6061 to correct tolerances.

Genuine Porsche bearings are recommended

Fits 911/912 64-69.5 aluminium case 901 transmissions.

90130122100, 901-301-221-00

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90130122100

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Fits all Porsche 901/911/912 aluminum case transmissions.

Precision machined from 4130 Chromoly
Better supports both main and pinion shaft bearings
Improved design captures the main shaft bearing 45% more than OEM
Substantial clearance provided for even non-standard tall 1st gear ratios
Perfect fit for bearings and assembly
Much stronger than the original cast part

Replaces part 901.301.251.01 tensioning plate

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90130125101

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The original Porsche 930 transmission differential side cover is made of cast aluminum, not to mention it's pretty thin.
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 significant strength and increased reliability to the differential section.

Our design features include:

A ring gear thrust bolt to reduce ring gear deflection under load
Ports that can be used for an oil cooling system
Cross drilled oil passageways for the differential bearing

Comes with (3) 3/4 - 16 O ring plugs.

Replaces part 930.301.311.02

930/30, 930/33, 930/34, 930/36, 930/37, 930/67

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93030131102

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This update will allow for use of the late style 915 main shaft seal and o-ring on early transmissions ('72-'75) where the seal installs from the inside and the guide tube is not removable.
The update is a also good repair for those whom have loose, damaged or worn out guide tubes.

** This requires machining to fit

The original is machined off and a custom steel tube is fitted. It's further retained from the inside of the diff case with a high quality snap ring and sealed with the factory o-ring.

Our spray bar, made from stainless steel, is an excellent reproduction of the factory RSR spray bar. It allows for gear lube (presumably from a remote pump and cooler) to be returned directly to the gear mesh, including the final drive gears.

** This requires machining to the front "nose cone" housing.

We have updated our 915 spray bar kit to include an improved oil return port that will not interfere with the torsion bar tube and allows for better routing of the oil return line.

A direct replacement for part 915.303.111.00 and 930.303.110.02.

Machined from 6061 T6 aluminium; features a replaceable threaded insert for the supplied bolt.

Fits all Porsche 915 transaxles 72-86 and 930 4 speed transaxles 76-88.

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91530311100

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Billet aluminium 5th/6th shift selector fork.

Fits all 993 6 speed transaxles C2/C4/T

G50/20/21; G64/21/21/51

Replaces part 950 303 116 00

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95030311600

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The factory cast aluminum 993 fork suffers from an inherent weakness in which the steel insert that the reverse lever actuates - is prone to failure.
The cast steel RS fork does not have this issue but it's not a billet steel one like ours...and it's less expensive.

Fits all G50 5 speed transmissions '87-'94 and all G50 6 speed transmissions '95-'98 including C4, RS, Turbo and RSR models.

(G50/00, G50/01, G50/50, G50/03, G50/04, G50/05, G50/52, G64/00, G64/01, G50/20, G50/21, G50/31, G50/31, G50/33, G64/51, G64/52)

Replaces part 950.303.113.04, 950.303.103.00, 950.303.113.04, 950.303.103.06

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95030311304

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Billet aluminum shift fork is of motorsport quality and is an ideal replacement for street or track.

Proper rail to fork interference fit; maintains correct tolerances
Improved design reduces the chance of stripped threads
Uses factory torque specs and our supplied hardware

Fits all 996T, 996 & 997 GT2 & GT3 including RS.

G96/50, G96/88, G96/90, G96/93, G96/96, G97/88, G97/90, G97/92

Replaces part 996.303.115.50

Fits:
Porsche 996 Turbo / Turbo GT2 2001-05
Porsche 997 Turbo GT2 2008-09
Porsche 997 GT2 RS 2011
Porsche 996 GT3 2001-05
Porsche 997 GT3 / 997 GT3 RS 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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99630311550

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Our billet aluminum differential side cover is much stronger than the factory magnesium counterpart and will help reduce gear deflection under load.

Our version uses the larger 930 turbo taper bearing and features a replaceable clutch cable bracket.

You must use differential bearing 999.059.064.00

You can use the stock studs, axle seal, o-ring and factory preload setting.

Fits Porsche 911 70-71 side cover with clutch cable bracket for pull clutch

Replaces part: 901.301.311.12

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90130131112

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Our aluminum side cover fits much more precisely and will not "float" - causing gear misalignment - like the factory cast ones do.
Also incorporated is a differential bearing oiling provision.

Fits all Porsche 996 and Boxster S 986 6 speed manual transmissions.

G86/20, G96/00, G96/01, G96/30, G96/31

Replaces part 996.301.312.00 or 986.301.312.00

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99630131200

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It's not uncommon for the original thrust washer on the main shaft between 3rd and 6th gear to fail causing serious damage inside your transmission. We now offer a stronger billet thrust washer with specially designed oil grooves which promotes lubrication to 3rd and 6th gear needle cage bearings.

Fits all Porsche 996 and Boxster S 986 transmissions. G86/20, G96/00, G96/01, G96/30, G96/31

Replaces part 996.302.296.00

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99630229600

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Officially known as the "tensioning plate" the bearing retaining plate in your transaxle is a wear item. Normally you'll start to see a ridge develop on the inside step where the 4 point bearing flange rides. This part is often found damaged or worn out in track driven cars and high power turbos.
Our part is machined from 30,000 psi carbon steel and replaces factory part 996.302.121.9A.
Better and more light weight than the factory machined cast part.

Note: The pass through holes have been deleted to save weight.

Fits 996T, 997T2, 996 GT2, 997 GT2RS, 996 GT3, 997 GT3, 996 GT3 CUP

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9963021219A

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Billet aluminum shift fork is of motorsport quality and is an ideal replacement for street or track.

G96/50/88/90/93/96 : G97/88/90/92

Proper rail to fork interference fit; maintains correct tolerances
Improved design reduces the chance of stripped threads
Use factory torque specs and our supplied hardware

Fits all 996T, 997 GT2 & GT3 including RS and synchromesh CUP

G96/50, G96/88, G96/90, G96/93, G96/96, G96/97, G97/88, G97/96

Replaces part 996.303.116.50

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99630311650

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Billet aluminum fork is heavier duty compared to street and is less expensive than Motorsport.
G96/50/88/90/93/96 : G97/88/90/92

Proper rail to fork interference fit
Clearance for oil pump drive gear
Perfect roll pin provision
Substantial surface area to shift sleeve
Maintains correct tolerances

Fits all 996T, 996 & 997 GT2 & GT3 street car. Does not fit CUP gearboxes.

G96/50, G96/88, G96/90, G96/93, G96/96, G96/97, G97/88, G97/96

Replaces part 996.303.113.51

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99630311351

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Direct replacements for Porsche 997.1 6 speed manual.
The plastic pads are a known issue on factory forks and even more so for a race box.
Ours are designed without.

G97.01, G97.31

Part Numbers
99730311100/1 1st/2nd
99730311300/1 3rd/4th
99730311500/1 5th/6th

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99730311100

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For most component car applications OEM cables won't work and custom cables are required. If you are building a car then the last thing you need is to add a bracket to your to do list. So we have done it for you!
For use with 3 inch throw, 5/8 threaded cables. NOT compatible with OEM cables.

Fits 996, GT2 and GT3 transmissions.

G96/00, G96/01, G96/30, G96/31, G96/50, G96/88, G96/90, G96/96, G97/50, G97/88, G97/90

Replaces part 996.424.165.02

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99642416503

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Fits 99-05 Porsche 996 C4 and Turbo AWD.
G96/30/50: G97/31

Our version is stronger and incorporates the ring gear thrust bolt to minimize deflection under load. To my knowledge the factory cover is not offered as a spare part.

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99634901003

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Our newest transmission cover plate for the
Porsche 997 Turbo 1st and 2nd gen with G97.50 6 speed.

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99730131250

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