here's the deal, 07 ford f150 lariat 20" stock rims and Perelli tires.i picked up a vibration (pretty bad)at 68-73 miles mph. before and after it rides fine. So, i had the tires balanced-no fix, rotated-no fix, balanced after the rotate-no fix. The weird thing is it can be good one day and really bad the next! i have read every vibration thread on here and have seen some people with the similar problem but no fix. has anyone recently fixed this problem and if so what was it? any ideas or help would be much appreciated! Thank you ahead of time.

 

Either the person balancing does not know what they are doing, or you may have a loosened caliper ( brakes done recently? ) or are due for ball joints.

 

what are the tires "road-forcing at?

 

No, on the brakes. But it started after a tire rotation. I just noticed today on the way in to work that I made it to 70 with no vibration and had to tap my brakes to slow down and the vibration came back bad. Will check calipers this afternoon and get back. Tires road forcing at? Not sure what you mean?

 

I have the same problem between 55-60 mph on my truck. I took truck in to get the wheels balanced and the guy showed me that the tread of the rear tires is choppy/wearing funny. Bad part is the tires were put on new when I bought the truck last fall from Ford and only have 4k on them since then. That's why you don't by Hercules brand tires - cheap junk. One more reason to buy some new mud tires!

 

x's 2 on those calipers...had the same problem with my FX4.... had a sticky brake caliper...changed it out...no more vibration...

 

gettin both my calipers /rotors and pads on my 05 as we speak!......back set~...

 

Question on the caliper.is there anyway to know which one? Would the truck pull a certain way?

 

Because of bad vibration in youir steering wheel at 70 mph? If so, please let us know how you made out. Thanks