I thought that somewhere along the way you said it had an independent front. My mistake.

In the old days there were several adjustable proportioning valves on the aftermarket for the hot rodders. I expect that there still are, but if you could work out the right dual master cylinder it would be better. Tough to do on a grass roots basis though.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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