gawdzilla wrote:where exactly did it fail? the u joint by the rear diff?
kinda scary.. they doesnt happen too often? who made your ds?
The rear U-joint snapped. I had a local shop make the driveshaft using the Z32 slip yoke and u-joint with the old rear u-joint off of my 240 2-piece shaft. Probably not the best idea, but it was cheap and I figured I would break traction before I'd break a joint with all-season tires. The guy who is putting my new driveshaft together now said my old one was bowed and I'm wondering if that didn't contribute to the failure by fatiguing the joint in the first place.
Now I'm getting a GM rear U-joint (5-153X, which is a 1310 u-joint part number) and a bigger front u-joint with external snap rings so I can more readily replace them should they break again. I'm also considering running a driveshaft safety ring now. If that front joint would have failed and the front of my driveshaft hit the pavement, it could've gotten ugly in a hurry.