Thank you I would appreciate any help. I have been told that it could be just gearbox rattle which they advised to slightly overfill the gearbox to make it a bit quieter. You can't even hear it from the passenger seat it that slight of a noise. Plenty of hills hear I am in the middle of the north york shire moors. I am thinking of an xj 350 v6 have sort of got hooked on the jag thing