I just installed Boss coil overs on my 2015 F150 and brought it to an independent shop to get the alignment corrected. The shop was able to get the front end aligned correctly, but found the toe of the rear left tire to be at 0.25 degress and the thrust angle is at 0.17 degrees. I know the solid rear axle does not allow for any adjustment, but does anyone know how to correct this issue? Or if it is common on the 2015-2016 trucks?

I've only had the truck for about a month and a half and it only has 1200mi on it. I took a look under the rear end to see if I noticed any bolts that may have been worked on, but everything looks like it came from the factory.

 

I mean, it isn't horrible at that degree but it is a new truck so it could be loose U-bolts or a defective spring with the notch that keeps the axle in line is in the wrong spot. Both of which warranty should cover if the independent shops alignment machine is calibrated correctly.

 

Rear total toe needs to be considered. Ford or Hunter alignment will have specs showing what is acceptable. If the axle housing is out of spec either from misalignment when being welded or from damage, accident or being chained down improperly from shipping or body repairs, the only fix is a new housing.