I have a drive line vibration on the wagon conversion I did as well.. it has to be the Ujoint.. OR that is my next attempt, just as soon as the ground dries out.. also i have had an engine vibration develop in the last thousand miles, which was not there last summer when the manual transmission was installed.. so I don't think it is an imbalance condition in the flywheel, but something else.. or that is what i Hope.

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46 WDX Power Wagon

84 300TDT daily driver