Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Differential Assembly


Technical data on front final drive





Technical values

Transmission type: Z97/50

Equipment: Bevel-gear drive without hypoid offset

Equipment: Electronically controlled, electromagnetically actuated multi-plate clutch

Installed in: 911 Turbo (997)

Model Year: 2007

Transmission ratio

Final-drive ratio: 3.33