Quote:
Originally posted by lightning bug
True the early mag trans. is lighter, but the later all alum. are stronger as well as the stronger and higher geared 3.88 R&P as opposed to the pre-75 4.43. All alum. case is '78 and up BTW. Me personally, I would take strength over weight any day.
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But Julian, The 915 can handle up to 300 hp! The (magnesium composite) case is probably not the first to break anyway (most likely a gear or diff will go first). Besides the final gear ratio of a mag case is already way longer than the bug's IRS with 3,875 R&P because the shorter R&P of the 915 mag case is more then compensated by its longer gears.
Sorry, but weight ditribution is very important and in this case you can influence it by choosing the right part and you really don't sacrifice strength. Unless you drive a 350 hp turbo on the street...
Walter