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Message: [QUOTE="kleake, post: 1474556, member: 25987"] FIXED!!! The rear flange on the axle was to blame! There is a balance weight on the flange similar to a harmonic balancer. It is rubber mounted and I guess over time had moved somehow. I put hose clamps around this balancer and was able to get rid of about 90% of the vibrations. I debated just taking the balancer off with a press, but I was able to hunt down a new one on ebay for $50. Put it on and all vibrations are gone. Best I could tell, it's likely been vibrating for quite a while explaining why my pinion seal was leaking and the flange was a little loose to begin with. I couldn't feel it due to the two piece driveshaft, but with the 1 piece it was transmitting that vibration a lot more. Glad to finally have this fixed, and now I can say that the 1 piece shaft is MUCH better all the way around. In case anyone else runs into this issue, the PN is 8C3Z-4851-A [/QUOTE]

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