what does wheel arch height tolerance mean?

[markc0220k]

mine is 09 spec b. on the manuel i found the arch height is front 381mm/rear 365mm. front and rear both's tolerance are +12mm and -24mm. if i lower the front like 22mm,meaning i didn't need to re-alignment afterward at all (toe/camber/caster)?

 

sorry...question is kinda stupid yet need some consents, thanks.

[lagwagon]

You should still check the alignment when you lower it. Changing the ride height (while still within factory spec) doesn't guarantee that the alignment is still in spec. Usually both toe and camber will need to be adjusted. The rear might not change if all you lower is the front but still get it checked.

 

I'm guessing you want to lower the front to get rid of saggy butt. You might want to consider replacing some rear suspension components (springs, shock mounts, bushings) and consider saggy butt spacers to get the ride height level instead of simply lowering the front. If its for other reasons, disregard.