Are camber bolts needed after installing springs?

[Tamago]

Originally Posted by ddongbap

Having slight camber doesn't ruin your tread life. It will be probably only a smidge shorter.

agreed. if you rotate, or even flip, your tires regularly you'll be fine

what kills tires is excessive toe

remember, folks, because you have trailing arm suspension in the rear, any "built in" camber set by the factory (and believe me, there's built in camber) is turned into "toe in" when you've lowered your car. lowering a trailing arm suspended car almost always leads to more understeer then you experienced pre-lowering. a swaybar can help trick the rear into rotating, but the best thing you can do for the rear end of a yaris after lowering is to get shims to correct that excessive toe-in created by lowering.