Mine didnt break but it was on the verge of doing so... It pitted the gears and scarred the outer ring of the gear and the housing and all enough that I lost significant oil pressure resulting in a spun bearing. I was also using a factory crank pulley and revved to 10,200 rpm which was probably the main culprit of the damage. At 9700 rpm everything was fine not to say there wasnt damage occuring but oil pressure remained solid with no dip all up until the point I upped the limiter to 10,200. An ATI balancer is a significant must have when revving to 9k and above on these engines. The play in the pump while its not a great design, the harmonics are what slam the pump gears around and having the play may only make things worse but the ati damper should keep the nose of the crank vibration down to little to none. If I could have done it all over again, the money would have been spent on an ATI damper... and who knows, that original 2.0L motor could have still been in existence today.