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			There are more knowledgeable folks than me around that will probably weigh in eventually.  But I'll put my non-expert info out quickly:
 Don't use your torque wrench for the +120 as you may damage it.  A breaker bar is a better tool to use.
 
 Probably an oversimplification, but the way I look at the balancing is that if you have two things that are balanced individually, the assembly will be balanced when you bolt them together.
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