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Originally Posted by HUMMERICH23
So in 08 they switched rear ends to 3.73 then? Why didn?t they just keep the 4.10? So if you put 37's on an 08 or 09 is re-gear like a mandatory upgrade then?
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May not be mandatory but it would help keep you in your power band...
Check out this calculator:
http://www.4lo.com/calc/geartire.htm
Looks like you may want to move to 4.10s.