hi just looked in paddocks book if its the front diff seal thats split it costs 1.60 plus vat and the part number is ftc5258 and if you need the gasket that is 53p and the part num is 7316 if its the rear diff there is 2 types by the book diff seal for 4 bolts is 98p part num frc8220 or if its for the 3 bolts it is 1.60 part num ftc5258 but those part numbers are the same if you order it from the main dealerobviously the price will change though hope this helps