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2013-14 Shelby GT500
Solid differential spacer results
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<blockquote data-quote="biminiLX" data-source="post: 15079795" data-attributes="member: 7795"><p>I know it's frustrating but a couple things you're overlooking.</p><p>1) Ford does know gear/diff whine is a problem on the Mustang, it's just that most don't race like we do and the ones that do and get whine are covered no questions, mine were and a member here has had like 3 full replacement axles assemblies under warranty.</p><p>2) if replaced correctly, there will be know difference in swapped 4.10s than stock 3.31s. In your case, I'd be asking the installer but</p><p>3) by definition, the gear swap increases mechanical advantage and produces more torque and potential flex on the assembly at launch.</p><p></p><p>I'm very confident, the many 3.73 SS at 850hp that have a fuse (standard summer rubber) could be driven their whole life to shows and never whine.</p><p>I'm shocked with all that performance use that your stock 3.31s didn't whine. I'm assuming they did to some degree.</p><p>Just trust me and learn from the money I've spent, throw it all at the 8.8" if you're going to race or have a sticky tire---girdle with studs, welded tubes, bracing, etc.</p><p>If someone figures out the magic formula, please enlighten us, as the axle currently under my car has the most bracing you can reasonably do for a street/strip car with 3" pipes, and all the mods above.</p><p>Good luck.</p><p>-J</p></blockquote><p></p>
[QUOTE="biminiLX, post: 15079795, member: 7795"] I know it's frustrating but a couple things you're overlooking. 1) Ford does know gear/diff whine is a problem on the Mustang, it's just that most don't race like we do and the ones that do and get whine are covered no questions, mine were and a member here has had like 3 full replacement axles assemblies under warranty. 2) if replaced correctly, there will be know difference in swapped 4.10s than stock 3.31s. In your case, I'd be asking the installer but 3) by definition, the gear swap increases mechanical advantage and produces more torque and potential flex on the assembly at launch. I'm very confident, the many 3.73 SS at 850hp that have a fuse (standard summer rubber) could be driven their whole life to shows and never whine. I'm shocked with all that performance use that your stock 3.31s didn't whine. I'm assuming they did to some degree. Just trust me and learn from the money I've spent, throw it all at the 8.8" if you're going to race or have a sticky tire---girdle with studs, welded tubes, bracing, etc. If someone figures out the magic formula, please enlighten us, as the axle currently under my car has the most bracing you can reasonably do for a street/strip car with 3" pipes, and all the mods above. Good luck. -J [/QUOTE]
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2013-14 Shelby GT500
Solid differential spacer results
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