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2015+ S550 Mustangs
Drivetrain Modification/Discussion
Thud sound shifing 1-2, 2-3-3-4???
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<blockquote data-quote="Jay-rod427" data-source="post: 15303748" data-attributes="member: 179955"><p>It is caused by the input shaft on the trans spinning at a different speed while engaging a gear. Most noticeably neutral to first, as someone said if you wait a second ( for the input shaft to slow down) it doesn't do it. Anytime there is slack in the drivetrain such as the driveshaft coupler, ring and pinion, trans gears, and torsen diff and you suddenly apply a small amount of force from the spinning components all of that slack gets taken up at once. Same applies to 2-3, and 3-4 shifts. The driveline is spinning with no load, then load is applied taking up all the slack.</p></blockquote><p></p>
[QUOTE="Jay-rod427, post: 15303748, member: 179955"] It is caused by the input shaft on the trans spinning at a different speed while engaging a gear. Most noticeably neutral to first, as someone said if you wait a second ( for the input shaft to slow down) it doesn't do it. Anytime there is slack in the drivetrain such as the driveshaft coupler, ring and pinion, trans gears, and torsen diff and you suddenly apply a small amount of force from the spinning components all of that slack gets taken up at once. Same applies to 2-3, and 3-4 shifts. The driveline is spinning with no load, then load is applied taking up all the slack. [/QUOTE]
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Drivetrain Modification/Discussion
Thud sound shifing 1-2, 2-3-3-4???
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