Originally Posted by Alex///M
This might be a dumb question but why is this pulley only good on 08's built until May of that year? Has there been a redesign of the belt/pulley stem in our motors and been implemented on cars built after May 08?
It's not a dumb question.
After June 2008 (and in some cases starting in May 08) the routing of the belts and belt type changed. Prior to June 08 the power steering used a clockwise rotation and the belts were single sided. After May 08 the power steering uses an anticlockwise rotation and a double sided belt.
Here is the routing for the "Pre June 08" setup
Here is the new routing "Post June 08" setup
I updated my OP (good question): May appears to be the cutoff point for some so if you have a May build you might have either routing...so best to check first.