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93 Cobra needs input · 03-14-2002, 05:42 PM

I replace the gears in my 93 Cobra to 3.73 and had a similar problem. Bought new FMS gears from summit myself and a good mechanic installed them by the book drove it and had a small whine. Drove it for a 100 miles or so still had it. Ended up taking the rear apart and reshimming the pinion 5 or 6 thousands more and the noise went away completely. Good luck with your gears I have heared that the higher the gears (4.30) the more noise you get along with them.

03-14-2002, 05:42 PM	#15
93 Cobra needs input Registered Member Join Date: Oct 2001 Location: Madelia,MN USA Posts: 58	I replace the gears in my 93 Cobra to 3.73 and had a similar problem. Bought new FMS gears from summit myself and a good mechanic installed them by the book drove it and had a small whine. Drove it for a 100 miles or so still had it. Ended up taking the rear apart and reshimming the pinion 5 or 6 thousands more and the noise went away completely. Good luck with your gears I have heared that the higher the gears (4.30) the more noise you get along with them. __________________ 331 stroker, JE 8.5:1 pistons, H-beam rods, steel crank, main cap, msd with 3step, BBK ceramic long tubes,TKO, 4.30's, motorsport Z303, Victor Jr aluminum heads, crane gold 1.6, southside lift bars, 90/10 front, 50/50 rear, centerforce dual friction clutch, Vortech S-trim soon.