I think the damper only has an impact on vibration mitigation of some sort at speeds over 35, but I'm not certain. What I do think: my PO (or his shop) pulled it when installing armor: remove bits from the t-case that don't get put back on, and just skip this thing as well. I think I bought mine for less than half that, so keep looking. For $200 I will go find a similarly sized rock, drill holes, add some rubber goo, and send your that; maybe even $150. Is it impacting your 4Lo bits: asymptotically approaching no. Will it enhance performance? According to my research, this item will add as many performances as racing stripes will, with the distinction that only you will know the extra performance is there. (low viz location)