05 f150 reg cab longbed V6. High milage 92000 and bought used so dont know complete history. Its been doing this since i've had it.

New tires, and also replaced the rims and had them rebalanced, but still the same. Low speed great but around 65-70 i get slight vibration....i'm not sure if its in the wheel or the truck...i dont feel it much in the wheel but the passenger seat you can see shaking.

Any clue where to check? wheel bearing? balljoint of some kind?

thanks!

 

First is it standard shift or automatic?

 

Hi sorry forgot to add that, its an automatic

 

I would check the ball joints and tierod ends. I had the same thing happen on my work truck (94 F150). It had a vibration at around 60mph, so I had the tires rebalanced and it was still there. So I then started checking ball joints and then I found it, the lower ball joint on the drivers side was shot.

 

If you can feel it in the seat of your pants, I'd be looking at drive train problems, drive haft or U-joints, rear tires not balanced or parking brake not releasing all the way. May even check to see if you have mud build up on the inside rim of the rear tires. That has happened to me several times with snow build up and caused vibration.

 

I've had a bad sand build up inside of my rim lately... but then again, the last time I washed my truck was in January.

I was gonna wash it tomorrow... but I'm busy. :o

 

feels more in the cab than in the wheel, could this be the 'nibble' i keep reading about in threads here when doing searches?

 

have you had the rotors checked? thats what caused my vibration at 65-70

they may be slightly warped.

 

I have an 05 Reg cab too. I have that same nibble at 65-70 mph. It was really bad at first. I put on a leveling kit and got an alignment and it seemed to fix it a little. But it does sound like the nibble everyone is talking about. I have read all over the forums about getting a road force balance.

 

That Road Force balance isn't what people think it is. It costs a stupid amount of money and any quality tire guy should be able to do the same thing the machine does. I do not need a macahine to tell me if a tire is out of round, has a thread hop, etc etc.

All it does is tell you to put the tires with the least weight on the front

Fancy pos if you ask me

 

Yeah I have just heard people talk about it. When I got the alignment I think it helped a little. Plus when Im on the highway I usually stick to going 75-80 and it usually stops around there.

 

yeah 75-80 stops pretty much. guess just a design flaw...though being 70mph is highway speeds gotta wonder how that made it through qaqc