Drivetrain Vibration When Towing
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Senior User
Joined: Jan 2009
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From: Salem, Oregon
Drivetrain Vibration When Towing
I have two 2002 SD, PSD's that do the same thing. When towing a trailer which weighs around 8-10,000 lbs. there is a vibration when just starting out on an uphill pull. Only does it at low speed and on a incline. Does not do it when starting level. Both have air bags in the back to level the truck for the tongue weight. It is regular hitch pull not fifth wheel. If you give it more power it gets worse. You just have to ease through it until you gain some speed. Any ideas? I'm thinking driveline wind up or a change in the driveline/pinion angle, something like that. Just don't know what to do about it.
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Thread Starter
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Senior User
Joined: Jan 2009
Posts: 129
Likes: 0
From: Salem, Oregon
One truck is longbed supercab, the other is a shortbed crewcab. So there is only two inches difference in wheelbase. Everything along the driveline has been checked out. Watched the video suggested by high ho silver; very interesting. Way more movement than I would have believed. That could be the issue.
