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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,229
930 tranny upgrade

I am considering upgrading the 4 speed tranny on my 79 930, and wanted opinions and options from guys with experience on the forum.
I have a stock 4 speed, but would like to get some more performance out of the car without engine mods, and thought that a real great improvement that most guys don't think of would be a tranny mod.
What improvements can be made with regards to gearing changes or diff changes on the stock 4 speed?
What would be the costs associated with this versus the other route of getting a 5 speed unit.
Can the 915 box handle it or what other options are there to get a 5 speed without having to modify the rear torsion housings or changing over to hydraulic clutches (I want to avoid such extensive work)?
Old 01-02-2007, 12:36 PM
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