zx6r and zx6rr rear shock 2005

Need to know is there a difference between the two shocks in length. I know the internals are different.

Hmmm... I think the 636 is 335mm, and the 600 is 330 - but yeah, gotta get it between 330-340; i.e. too short = no good.

(and yeah, valving different due to linkage stuff...)