Ok, so I just go the truck back home but won't be able to pull anything apart today due to weather. The truck previously had the rims with the split ring on the side but have since upgraded to 22.5 rims. 1st pic old rims. Second pic new rims. 3rd pic might be helpful. According to the metal tag it is 7k front and 16,160 rear. As far as self adjusting I do not know. The shop owner did say they tried to loosen the front right because it was tight but that the adjuster was rusted. I'll try to get it on the pad tomorrow and take off a front and rear and snap some pics and take some measurements if necessary.
