and I take it you had the whole thing checked out..
weird man...all the components you had checked...yet usualy when a vibration takes out rear U joints would be...unbalanced drive shaft...bad u joints to begin with...bad pinion yoke or bearings to same...misalignment/..
if the axles were bad you would be eating gears and seals..
the suspension is all tight?...outside of installing a whole new drivetrain...got me hangin..
i know, this has me totally lost. i tired my stock axles too lol, and it only eats the rear u joint never the front one. if i run down the track i might get 2 passes out of the rear u joint, SUX unless the rear housing is somehow bent and dont know what the leaf springs would do if they were bad, cruizing around town its smooth as glass, till i get to 80mph then it goes south
