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Old 06-10-2011, 04:11 PM
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Originally Posted by Coolball
It's a GM 10 bolt and I switched the ring and pinion to a 3.42 set of gears and used the same shims to start.
Using the original shims that were correct w/the old R&P are a starting point, but you'd like to start out w/the same shims that were used w/the same R&P you are installing. In other words, if you have the shims that were used w/the 3.42 gears, that is what you want to start with, or the equivalent new shims.
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