Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Yukon 3.75 gears for Ford 9 inch....noise
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Old 04-15-2011, 06:45 PM
LS1-IROC LS1-IROC is offline
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I've read through most of your post....I too am fighting some noise in my 9" in my IROC. I have not gone through all the steps you have, but I have played around with it quite a bit. I did not see if you said you checked for ring gear run-out. I have .003 runout on my ring gear when torqued to the Trac-loc posi. I beleive this is what my issue is. I have got it to the point where it's pretty quiet now...only whines between 50-70 mph on accel...quiet all the time on decel. Good luck with it!
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