I did mine this week. Its a doddle if you know what your doing and you have the gear to do it with. Have you got a 10 ton press,36mm socket,a large adjustable, torque wrench, £76 + postage for a new oil cooler plate (you wont get the old one out without damaging it) and the savy to get bearings off that have been put on that are not meant to come off. The crown wheel bearing is a pain in the arse. Im lucky in the fact i have a multi million pound workshop at my disposal with a 70 ton press, all the bearing pulling equipment you could possibly need and a -40 degree freezer to shrink the crown wheel shaft with. Apart from that its easy.