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rear end
i wanted to get my jimmy to have a faster take off. i was woundering how much of a diff would 3.73's make. i think whats in there now is 3.42's. what would make the best improvment for 1/4 mile time?
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler, 40 street series split rear, 2 12" audiobahns in custom box,K&N CPI intake system.
71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers. Mag 500's with black center caps, C4 tranny with shift kit, Mach 1 body lay out.  
90 cav, 2.2 tbi, gas getter.
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