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S-197 Mustangs
8.8 Rebuild - Is there a guaranteed whine-free gearset available?
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<blockquote data-quote="cidsamuth" data-source="post: 16549435" data-attributes="member: 110091"><p>The whole whining thing is an enigma to me. When I had 4.10s installed by JPC, which obviously is a very reputable shop, it took them 3 times to get it to a whine level I could tolerate. Then, when I upped my power level and went back to 3.55s, the local guy who did it (also reputable) needed 3 attempts to get the whine to tolerable levels. Both times, I used nothing but Ford Racing gear sets.</p><p></p><p>I'm told the lower the gear ratio (i.e. 4.10s), the more likely to whine, but I don't know if it is true. I also grow tired of people posting that proper installs will always yield quiet gears, as I now know there are too many variables to say that conclusively.</p><p></p><p>The one thing I know to be true: The OEM suspension hides whine. Once you start replacing the rubber bushings with polyurethane, things get loud. When JPC finally got the 4.10s "right," it was with OEM suspension. Once I went to an all BMR rear suspension setup later, the rear end noise became very noticeable again. While the 3.55s I now have are much more quiet, I can still hear it if I listen hard enough.</p></blockquote><p></p>
[QUOTE="cidsamuth, post: 16549435, member: 110091"] The whole whining thing is an enigma to me. When I had 4.10s installed by JPC, which obviously is a very reputable shop, it took them 3 times to get it to a whine level I could tolerate. Then, when I upped my power level and went back to 3.55s, the local guy who did it (also reputable) needed 3 attempts to get the whine to tolerable levels. Both times, I used nothing but Ford Racing gear sets. I'm told the lower the gear ratio (i.e. 4.10s), the more likely to whine, but I don't know if it is true. I also grow tired of people posting that proper installs will always yield quiet gears, as I now know there are too many variables to say that conclusively. The one thing I know to be true: The OEM suspension hides whine. Once you start replacing the rubber bushings with polyurethane, things get loud. When JPC finally got the 4.10s "right," it was with OEM suspension. Once I went to an all BMR rear suspension setup later, the rear end noise became very noticeable again. While the 3.55s I now have are much more quiet, I can still hear it if I listen hard enough. [/QUOTE]
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8.8 Rebuild - Is there a guaranteed whine-free gearset available?
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