Drive shaft fastening: combinations permitted for the Boxster
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NOTE:
- Monobloc drive shafts -B- have bores for M10 fastening screws (diameter approx. 10.2 mm) on the inner joint.
- As the transmission flange in Tiptronic vehicles is also equipped with M8 thread (also in conjunction with monobloc drive shafts), special screws -2- with M8 thread and a shank diameter of 10 mm -arrows-are used to compensate for the larger bores of 10.2 mm on the joint.
- The special screws -2- are also used in manual transmission vehicles produced as of model '03, since the transmission flange with M10 thread is only available from November 2002.
There are 3 versions of the transmission flange for the Boxster (not for the Boxster S): 1 flange for Tiptronic transmission with M8 thread (irrespective of model year and drive shafts) and 2 flanges for manual transmission (1 with M8 thread and 1 with M10 thread).
In accordance with the drive shaft version -A or B- in Fig 1 and depending on the transmission flange, the stipulated screws -1, 2 or 3- in Fig 1 and plates -d = 8.2 mm or d = 10.2 mm- must be used.
DRIVE SHAFT SCREWS & PLATES
| Version - (drive shaft/transmission flange) | Stipulated screws and plates | Use |
|---|---|---|
| Friction-welded drive shafts -A--M 8- in Fig 1 | Pan-head screw -1-d- in Fig 1 |
|
| Monobloc drive shafts -B-M 8- in Fig 1 | Special screw -2-arrows-d- in Fig 1 |
|
| Monobloc drive shafts -B-M 10- in Fig 1 | Pan-head screw -3-d- in Fig 1 |
|