U joints are easy to check. Get the car up high enough to get under it. Be sure to use jack stands if you don't have access to a lift. Grasp the driveshaft in front of the rear u joint and try to twist it back and forth. There should be NO play in the u joint at all. Do the same at the transmission. If either one is bad, replace them both. They are cheap and usually both go bad within a few thousand miles of each other. A clunking sound is usually a u joint.
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E-cam, pullies, 3.27, Mac Off-road, 2 chamber Flowmasters, 5 lug conversion
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