floorboard vibrations - Diesel Forum

jetflyr · 07-05-2007, 01:09 AM

Hello all. I have a pretty good vibration going on in my floorboard. I start to get it at around 55mph, and it is VERY pronounced at 60MPH +. If I really step on it, I can feel it too. But with just normal accelerating (for me), I get at the speeds above. I have had the front shaft u joints replaced. All of which I can be greased now. Transfer case has good fluid quantity. I had the guy check the rear shaft too, and it was fine. Would the front wheel bearings do this? There may be a loud hum as I feel the vibration. I know I have a ripped boot on the drivers side outer tie rod end, and I have to keep greasing it. Perhaps this may be an issue. Though I do not feel anything in the steering. It is all under my feet. Any ideas? Has anyone had anything like this? Thanks, TOM

clem · 07-05-2007, 06:24 AM

After a drive check your wheels for heat,could be a dragging brake or a worn out bearing.If you have a clutch your flywheel could be going bad.If you have an after market DP,it could be rubbing the body.

94strokerace · 07-05-2007, 06:05 PM

I was jacking around w/ my exhaust last weekend and didnt know the dp had twisted into the firewall/floorboard transition and had a vibration. Get your truck up the speed at which it vibrates the worst and then engage the clutch/slide into neutral, if the vibe goes away instantly then its in the driveline.