Hi guys, help required. I have been told by Arnold Shark that my car requires a new gear selector oil seal and they would relieve me of £76.58 for the privelege for a part i have just bought for £4.42. I have tried to find a thread relating to this but unfortunately am unable to. What i'm wanting to know is could i do this myself and if anyone could provide how and any pics if possible would be great. I am losing gear oil but not that much however i dont want to be losing any so any help would be appreciated. I have also been told that i would require a gasket but believe it to be liquid and not a rubber any help on what i need would also be good.