Vibration 85 K20

[72c20customcamper]

After alignment truck started vibrating again . I took the front tires off my 72 and put them on the 85 . Vibration is completely gone . Had the takeoffs spinbalanced again and the left front had a radial hop in it . This is the second set (Michelin) tires on the truck so the assumption it’s not the tires . Sure enough the rim has a good amount of radial movement . We put that tire on the spare rim and balanced again . The truck is vibration free . Weird that a factory rim would have so much radial run out .