Porsche 911 GT3 R Technical Manual page 60

• Then insert drive plate 3 and intermediate plate 4
The clutch hub must have at least 0.25 mm axial float. This dimension is
of particular importance before the clutch reaches its maximum wear.
No greasy or oily substances should contaminate the clutch
plates.
The splined section of the gearbox input shaft must mesh over the entire
length of the drive hub. The gearbox input shaft bearing-journal must be
smeared lightly with copper grease (Porsche part number
000.043.004.00) before assembly.
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