I have just bought my first Freelander. It is a 2000 Freelander TD4 with 130000 miles. The car drives fine with no noises. However I have noticed underneath there is a leak of oil to the front of the rear diff where it joins the propshaft. I have attached a couple of photos. I had already wiped off the excess oil unfortunately. Is it likely to be seals or will I need a replacement driveshaft. How difficult is it to remove the driveshaft to either replace the oil seals or fit a new unit? Regards, Lee.