I fitted this to my Dodge Dakota 03 (3.9 5 manual transmission) as the old one started to drive, it rusted and the rubber ripped so I decided to replace it . I noticed crankshaft pulley run out on the old balancer because the pulley is a little warped and I can't find a replacement. the wobbling went away with the new balancer, because when I screwed it onto the new balancer, it sat a little crooked on the shaft. That was my goal because although the new balancer is slightly bowed, it reducedโฆ