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Rear end upgrade?

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04-16-2014, 03:07 PM	#1
jdw Registered User Join Date: Jan 2013 Location: portland oregon Posts: 156	Rear end upgrade? I've got a 1972 gm 12 bolt truck rear diff with 3.07 posi: CS10-CE10 3.07P. Can the gearing be switched out for 3.73 posi and handle 355hp or do I need a new rear end? I'd have a shop do this. If it's doable, any recommendations on what i'm going to need to purchase? Thanks.

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