Over time the 993 shift linkage is subject to developing play with use. Most of the play is from assorted plastic bushings or the plastic ball cup socket at the bottom end of the shift lever all just a few dollars in parts. One source of poor shifter feel may be the rubber coupler at the end of the shift rod further back where the mechanism attaches to the transmission's internal shift rod.
Here is a comprehensive list of shift linkage soft parts subject to wear that can be considered for replacement when the transmission or clutch are being serviced:
Qty Description Part number Notes
4 Insert 964 424 115 01 To mount Shift Slide
2 Bearing Sleeve 964 424 028 00 To mount Shift Pipe
6 Plain Bearing 999 924 002 40 To mount Shift Fork & Shift Rod
1 Rubber Washer 950 424 227 02 Links Shift Rod to Transmission
1 Angular Joint 928 424 005 01 Links Guide tube to Bearing Plate
1 Cup Bushing 911 424 139 01 Links Guide Tube to Shift Lever
1 Tubular Rivet* 900 120 046 0C To mount Rubber Washer,
see part 16C in the below diagram
* This part may be able to be substituted by a generic screw, washers & locknut similar to that used with the J West aftermarket Rubber Washer below.
In the 993 catalog, the rubber coupler is not called out as a separate part number but if one reaches back to the catalog for a late '80s Carrera this is what one finds:
Not only is the rubber part listed (16A) but all the hardware bits to install it!
Also, there is an aftermarket upgrade part available from JWest Engineering:
The Golden Rod and other aftermarket solid shift linkages.
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| Transmission end Linkage FDM Golden Rod |
The FDM Golden Rod is based on factory RS and RSR solid shift linkage design. Some believe aggressive shifting with solid shift linkages can cause the shifting process to apply too much force on the internals of the transmission when changing gears. The rubber washer in the stock shifter linkage prevents hard loads from being transferred from aggressive shifting. Some speculate this issue only applies in track-driven cars as thousands of street-driven cars have had these linkages installed racking up tens of thousands of miles without issue.
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| Faild Angular Joint Ball Cup |
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#993 Shift Linkage #Shift Coupler #Shift Linkage #Shift Rod Coupler #Rubber Washer
#Rubber Coupler #993 Shift Linkage #993 #Golden Rod
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