stroker damper

My experience with the Pro Sport was fine with a milder 410 for 3 years, but the outer ring managed to slip recently after upping the power via cam, heads etc. My experience is Possibly an outlier but it slipped nonetheless and I’m not using one again, the corrosion early on was a turnoff as well. Photos: Lined up together the Yellow mark on the oem balancer is “0” and the red line on the Pro Sport is “0” The timing markings are also about worthless without highlighting them as I did.

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how do i know if it has slipped ? Don't want to find out the hard way so far there is no vibration , don't know how much HP you had or the crank pistons and rods you were using if it makes any difference . i'm using a molnar crank and molnar h beam rods with DSS forged pistons think the bobweight is 1800 . **** i sure don't want that thing grenading at 7000 rpm , what should i get to replace this junk ?