I have an 87 ETA with only 99k on the clock and i will be buying a TMS chip soon. If i recall correctly the eta has the 2.93 or 2.73 open differential. What would be the best differential to get to replace the stock open diff? Which is better between open and limited slip differentials? I use my car completely for dailying, so any opinions on what would be the best differential for decent gas mileage and better gearing for a little more power.
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