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Old 02-28-2012, 03:39 PM
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Driving my 1979 scottsdale and slung my driveshaft

ok wwas driving my 79 scottsdale home and slung my driveshaft...when i looked at it it had slung the nut off the pinion shaft so now i cant count turns to get my preload...how am i gonna acheive this without having to pull the entire carrier section and changing the crushsleeve?
specs...79 8.8" 12 bolt

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Old 02-29-2012, 03:27 PM
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As soon as a pinion nut has been turned counter-clockwise, even the slightest from where proper adjustment has been made, the crush sleeve has to be replaced. Tightening up the pinion nut to exactly where it was does not preload the bearings properly. Proper preload is determined by crushing the crush sleeve until a specific amount of bearing preload is measured by turning the pinion assembly by the nut and measuring the drag with an inch-pound torque wrench. Unfortunately, it has to come apart for a new crush sleeve and a new pinion nut should also be used. Having said all that.... I also have replaced pinion seals just by pulling the pinion nut and yolk off and then reinstalling the same. Tighten up the pinion nut until you get just a slight drag on the bearings. Too loose and the bearings will self-destruct. Too tight and the bearings will also self-destruct.... only faster. Self-destructed bearings may also damage other parts like gears, if the parts are big, and will require that all the other bearings be replaced as small bits will have gotten into them and marked the rollers or races, so even if they are thoroughly cleaned the marks will be there and cause brinelling and eventual failure. Good luck.
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Old 03-01-2012, 08:06 AM
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thats not the answer i wanted to hear but i thank you for giving me the info i needed...so im just gonna set the truck up til i have all the parts i need and fix my dodge for a daily driver lol
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