Leaky diff and Propshaft. Misaligned PPF?

Technical Area Engine, Transmission, Exhaust etc
1
  1. My model of MX-5 is: Mk1
  2. I’m based near: Edinburgh
  3. I’m looking for technical help or recommendations on: leak

Hi everyone. I’m not long from having my car back from the welder and the entire drive train assembly was dropped for undercoating. I got under the car today and noticed oil leaks from my drive shaft and also my diff.

It could be the diff seals and Propshaft seal but I am noticing a vibration on deceleration and when the clutch is depressed goes away. Could this be a PPF missalignment which is cause the noises and leaks?

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2

I wouldn’t have thought that a misaligned PPF would be the cause of the leaks but it could possibly be the cause of the vibration.

3

Maybe the seals got nicked by the mechanic on reassembly. I also notice a clutch noise (like a throwout bearing) light grinding which goes away when the clutch pedal is depressed