Tires: tires wearing truck bouncing, ford f 150, check alignment

Question
Hi my front driverside tire is wearing on the inside and the truck bounces at 80mph i have had the truck tires balanced and rotated, would an alignment be the cause or is a bigger problem? truck is a 2005 ford f-150 xlt crew cab shortbox

Answer
Travor,

The first place to start in this diagnosis is to get the inflation pressure right.

On every vehicle sold in the US is a placard that lists the original tire size and the proper pressure for that size.  It is usually located on a doorpost on in the glove box.

But wear on the inside shoulder of a tire indicates an alignment problem.  And since the vehicle is bouncing - well this might be one of 2 things:  

1)  The inside wear is not even, which might be caused by the misalignment

2)  The shock is bad.

So I would do it this way:

1)  Check tires for proper size and pressure

2)  Check alignment

3)  Check shocks.