I have a 2021 F150 XLT 4x4 crew cab and noticed that the passenger rear wheel sticks out a 1/4"+ more than the drivers side rear wheel, noticed after installing the mud flaps. anyone else with this issue? It has Fuel rims and bigger tires which i believe accentuates this a bit. anyone else notice this on their 2021 with wider tires? probably not as noticeable with stockers... It is hard to spot but if you look down both sides closely you will see it especially if you have wider tires and running boards...

 

My '13 F150 was enough off to one side that I actually ran a 1/4" wheel spacer on one side to even it out. I haven't noticed it on the '21.

 

Anyone noticed this on their 2021? Or checked it? I read in an older thread it may actually be the bed that is misaligned and not an issue with the axel. Which makes sense.

 

Does that one rim have a bit of an offset that you didn't notice?

 

I mean they are a set of four. They should all have the same offset. But maybe?

 

It is the bed. Most are not aligned perfectly, it is a truck. Measure from the frame and it will be closer but probably not perfect either.

 

Most manufactures seem to have this concern.

The GM forum was bad....turned into arguments when people thought the axle was poorly assembled and welded when in reality the bed is shifted.

I noticed it when I installed new wheels/tires. Noticed it during the install at the shop. I asked them to remove the one that looked the worse to make sure it was not a mismatched offset wheel. They even measured it with a tape against the other 3 and all was correct. It just looked weird.

If they stopped doing this with the 2021 Fords, I think Ford wins for being first to correct the 'problem'.

 

Had another look, I don't think its the bed, as the passenger side sticks out a bit passed the running board and the driver side is just inside the edge of the running board, they are not attached to the bed. and i can see on the mud flaps the tread is out on one side more than the other....hmmm

 

You bought a Ford truck not a Bentley. They’ve been like this for years and years. It really isn’t an excuse but that’s just the way it’s been.
The bed is held in place by guiding pins they are plastic things. You can lift the bed and take those out to adjust the bed perfectly and then tighten it back down.

 

So now your homework assignment is to get under the truck and measure everything. Measure spring perch to spindle flanges and to the differential tube. Measure the shock mounts for distances between it and the next thing, on both sides of the shock and both side of the vehicle.
Just keep on going until you figure out which bit of assembly is incorrect. The axle tube needs to be longer on once side or the spring perch has to be in the wrong spot.
If you can't find anything wrong then probably time to drive to the frame shop to have it inspected. If the bed is straight like you're saying, and the axle is symmetrical, then the frame is bent.
Or the spindle is further outside of the axle tube on one side.

Or it's the bed like all manufacturers have experienced through history.
I know exactly what you are describing. On my previous vehicle, it literally looked like half the tire was outside the body while on the other side about 1/4 of the tire was protruding.
This was on a leveled truck with spring shackles used to raise the rear 1.5" and tires that sat well on a lifted vehicle. Nothing excessive. From top of fender the tires stuck out about 1/4". But with how the body wraps at the bottom of the bed side, it sure did look like the tires were sticking out a lot.