Bought the above in October, with 55k on the clock. Had rear spheres changed and mechanic noticed not the original gearbox fitted (quote -"Someone's had a go at that with an angle grinder!!). Uh-oh! Car seems to run fine but there is lot of noise until clutch is depressed, when it quietens considerably. Mechanic thought it was clutch bearing, but a new clutch had been fitted before I bought it (mechanic confirmed it has), so he thinks probably the gearbox is responsible for the noise. Considering a second hand unit, but understand I need to provide the numbers on the existing gearbox to ensure I get the right one. As it's not the original unit, can I use the vehicle ID number to try and track this info down, amd can I look at Peugeot 2.0HDi gearbox suppliers as well as Citroen? Thanks for any help