I have an 88 Formula WS6 (See Sig) and I was wondering what gears I have, 3.23, 3.42, or 3.73? or if you know the codes for the options; I could check that way too.

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88 Formula 350 WS6
Upper and Lower SuperRam, 1000 CFM Accel Throttle Body, ZZ4 cam, 24# Motorsport Injectors, Larger Gutted Mass Sensor, Homemade Cold Air induction, PROM by performance resources, MSD 6a box, MSD Distributor, Accel SuperCoil, Taylor 8mm wires, TB Bypass, B&M shift Kit, 160* Thermostat, Flowmaster Muffler

Headers in the mail soon to be installed

 

pull the cover and look at the ratio stamped on the ring gear is the best 100% accurate way of doing it. plus you can change the oil, add posi additive if you have posi and take a look at the insides fro any problems.

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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM