Um... I feel very embarrassed to ask this:

How do I know which one is the left and right on my 300zx calipers?

I have 1 with the brake line input hole on the left and 1 with the hole on the right.

Are there any markings I should look for? I couldn't find any.

...I'm assuming the left hole means left? and the right hole means right?

thanks!

 

GRANT I'm ABOUT TO BEAT YOUR A$$!! SEARCH YOU N3WB!3......the bleeder screw needs to be on the top and that will tell you which caliper is left and right

 

hahaha, a quick look on the Z calipers shown in the BBK thread could have answered that for you