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2005 Silverado driveline vibration?
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<blockquote data-quote="TBItoy" data-source="post: 752750" data-attributes="member: 1384"><p>the front driveshaft doesn't turn if it's in 2wd (well, it doesn't have power applied to it, but it can still and probably does turn)</p><p>In "Auto" the front axle disconnect is engaged (connected, like in 4wd) and everything spins, BUT the front driveshaft has a clutch pack in the transfer case that engages and applies power when there is a difference in speed between the front and rear output speed sensors.</p><p>In 4wd HI and LO, the front driveshaft clutch is at full power.</p><p></p><p>have you checked the fluid in the front diff, tcase, and rear axle?</p><p></p><p>the slip yokes tend to wear out on these trucks, I'd pull the rear driveshaft and check the splines on the slip yoke and the tail shaft, put some heavy grease on the splines and put it back together if it's not too wore out. Also, when you pull the rear driveshaft, you may find a joint that is binding, but doesn't have any play in it yet. Since the joints are not greaseable, they tend to get notchy and cause vibration before they completely **** the bed and explode.</p><p></p><p>a set of Cognito steering arm braces will really tighten up the steering and keep the joints alive for a lot longer (it keeps the dum-dum bent centerlink from rotating and stops it from pigeon toeing around corners)</p></blockquote><p></p>
[QUOTE="TBItoy, post: 752750, member: 1384"] the front driveshaft doesn't turn if it's in 2wd (well, it doesn't have power applied to it, but it can still and probably does turn) In "Auto" the front axle disconnect is engaged (connected, like in 4wd) and everything spins, BUT the front driveshaft has a clutch pack in the transfer case that engages and applies power when there is a difference in speed between the front and rear output speed sensors. In 4wd HI and LO, the front driveshaft clutch is at full power. have you checked the fluid in the front diff, tcase, and rear axle? the slip yokes tend to wear out on these trucks, I'd pull the rear driveshaft and check the splines on the slip yoke and the tail shaft, put some heavy grease on the splines and put it back together if it's not too wore out. Also, when you pull the rear driveshaft, you may find a joint that is binding, but doesn't have any play in it yet. Since the joints are not greaseable, they tend to get notchy and cause vibration before they completely **** the bed and explode. a set of Cognito steering arm braces will really tighten up the steering and keep the joints alive for a lot longer (it keeps the dum-dum bent centerlink from rotating and stops it from pigeon toeing around corners) [/QUOTE]
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2005 Silverado driveline vibration?
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