I saw someone selling a kit, that says that it is ford oem, and that it was for upgrading suspension for f150s for people with 17, 18, 20" wheels and wanted to upgraded to 22" for 08-2010 trucks.

does anyone know anything about this, like why it is necessary, is it because the rims are heavier on the 22s?

i only ask because i have a ford expedition 2011 model, and it came with 18" wheels, changed them out for harley davidson 2010 22" wheels.

the kit i saw was on e-bay,