I drive a 2011 pete. The front bearing in the differential went out because the pin on the oil pump broke. Our shop repaired it, now I had a slight vibration between 45 and 55mph, it got a lot worse to the point I quit driving it, couldn't hold my hand on the diff. I was told that the differential may have not been shimmed properly and is too tight, any input?
drive train vibration
Discussion in 'Peterbilt Forum' started by peter lugnut, Mar 17, 2017.
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You may have multiple problems...?? If you can't hold your hand on it from heat there may be a bearing issue, or maybe a lack of oil issue? If the pinion is loose I could understand a potential vibration, but the seal will most likely be slinging oil too, if it was refilled. If the jackshaft was seperated ( driveshaft between the rear drives ) and was slid back together just 1 spline off will cause a vibration. The U-joints need to be ligned up straight, if not it throws the driveline "out of time" and will create a vibration. Truck have a temperature gauge in the dash for the rears? Diff's will get warm over time under a load, just wondering how warm that one is getting.
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