Vibration in the floorboards
December 6th, 2015, 9:22 AM
#1
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Vibration in the floorboards
I have a 2002 suburban 4x4. I have a vibration at high speed. I changed the rear bearings, bought new tires. U joint seem ok, but not sure. I don't hear any squeaks or clunking when shifting into gear. The u joints have a grease fitting. Is it possible that they just need greased or they could be bad too
December 9th, 2015, 2:36 PM
#2
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If they have a grease fitting, they have been replaced I would bet. Best way is to just rotate them back and forth by hand. If worn, likely a lot of slop.
I had a worn rear one on my 2007 that had a grease fitting, when I checked it, tons of slop. When I replaced it, one half of the bearings had turned to dust. After replacement, the vibration went away.
I had a worn rear one on my 2007 that had a grease fitting, when I checked it, tons of slop. When I replaced it, one half of the bearings had turned to dust. After replacement, the vibration went away.
December 9th, 2015, 8:38 PM
#3
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take the rear shaft off and move the joints back in forth in both directions, if theres excessive slop it should be very noticeable but a lot of times they will be seized or you can feel a catch when moving the joint by hand. Sometimes you can tell with it on the vehicle still but the only way to be sure is to take the driveshaft off.