TheBirdistheWord Posted December 21, 2019 Report Share Posted December 21, 2019 welded 3.9 r180 installed recently behind a close ratio ZX trans. I was 2 miles from home after a spirited drive on hwy 152 over the santa Cruz mountains. The clunking will entirely dissapate if I accelerate at any rate. I have seen a few related posts while searching and it seems the ujoints are the first thing to check. All 4 half shaft ujoints have only 15k on them and are grease frequently, rear wheel bearings and CA bushings are new. Mustache bar bushing replaced. I think I can make a decent assumption it's in the shaft since it's literally the only thing I haven't serviced/replaced in the driveline/suspension. Is there a way I can verify driveshaft ujoints are culprit before I start pulling crap off and starting a goose chase? Quote Link to comment
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