997 CUP Final drive 8-39 i=4.88
The Porsche 997 CUP Final drive with a ratio 4.88 is replaceable with the original Porsche 997 CUP final drive which has a ratio of 4.88.
This shorter ratio is often used for rally or hill climb usage. The pinion has less teeth than the original ratio, which results in a higher strength.
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