Propshaft problem

[Reckless Rat]

The "long nose" (or short nose on an earlier car) that points down is mounted onto the chassis cross-member by a ball joint or in later models by a silentbloc bush. The bottom ball joint is adjustable and is usually the source of the knocking noise when taking up the drive. You can loosen the locknut and tighten the bottom seating nut, but if there's no available movement you can shim it inside with a washer. The top ball joint is also adjustable by rotating the castellated ring clockwise (after removing the lock bolt if it's there, and assuming there's still some thread left to do it!)

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