Disco_Dunk Posted April 7, 2006 Share Posted April 7, 2006 Hi Guys........ I've got an ex-RAC N-reg (300tdi) Disco, and it's been developing a drivetrain vibration at about 65mph and above. I'd noticed that the vibration disappears as soon as I let my foot off the accelerator (even when still running over 65). My first thought was rear prop UJ, so I whipped the prop off and swapped the UJ, but no joy. HOWEVER...... when removing the propshaft, I noticed that the rubber 'do-nut' is really slack (for want of a better description) - I can waggle the do-nut about all over the shop, and it's not the donut itself that's loose, it's the whole flange assembly. So, now I'm guessing that the 'front' bearings in the diff are shot, which is probably backed up by the oil that's leaking from the diff!....... does that sound like a fair assumption? If it IS the case, am I looking at a full diff re-build, or is it relatively straightforward to replace the bearings?....... to be honest I'll be inclined to replace the diff with a recon unit, rather than re-build it!! Cheers Dunk Quote Link to comment Share on other sites More sharing options...
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