Find an old school alignment shop with a magnetic caster/camber gauge. Like the old Sun Electric Co. slogan- - - -"We test- - - - - -not guess!" Or, you could just remove a wheel and use your angle finder on the wheel mounting surface. Just make sure the distance from the bottom of the spindle to the floor is the same as when the truck is sitting on the tires. Or, just buy this one:
www.ebay.com/itm/376886491557?Jerry
