I've guesstimated caster on a few race cars in the pits after a crash repair by dropping a plum bob from the top ball joint and looking at the distance to the lower joint, and my favorite camber checking tool was a 2 foot carpenter's level. Lots of sneaky ways to get one back on the track in a hurry!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!