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Rear end gear swap

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05-13-2007, 03:37 PM

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Rear end gear swap

I have a 1983 firebird S/E model.I am wanting to change the rear end gears to 3.42 or higher gears.Does anyone know what size diameter gear it accepts.Rear end has gm8 stamped on it.It's a limited slip 10 bolt.Changing the gears due to i am placing a 388 stroker engine in it and its pushing 600hp with 536 foot lbs of torque.i need the lower rpm's

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05-13-2007, 11:02 PM

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Re: Rear end gear swap

It'd be a 7.5" 10-bolt.

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