[ree]

So whose data is righter? Look at the link phil provided for "With RPO ZM6"

Caster (left) : 4.00 ± 1.00
Cross Caster (L-R) : -0.75 ± 0.50

Whereas HUMTECH's numbers for those are:

Caster (left): 4.75 ± 1.00
Cross Caster (L-R): -0.5 ± 0.50

HUMTECH's numbers are the one's I've gotten from my dealer.

Phil, do you have a typo? Or are there differences in model years?

I don't have the ZM6 option, but someone who does might care.