You can get pretty close on caster using a magnetic angle gauge. Put the truck on level ground, then place the gauge on top of the knuckle facing front to back and take a reading. An alignment shop would get a better reading using their machines.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.