dunsfold landrover sell genuine parts oil seal and t seals they will send them to you , got mine from there and had no probs with them at all and fitting looks harder than it is , i found it easy mate, i did mine with the engine in so you should find it easier, there are 2 types of t seal cork and rubber and yes DO fit them the cork ones fitted my lump, in the manual it tells you , you need a special tool to fit the seals, these are little wedges that bolt to the block and stop the t seals snagging as the cap is refitted to the block i found some deft use of some feeler guages done the job just as well, all will become clear when you have the seals and the cap out the most difficult thing i found was hooking the seal spring together !(fiddly), when you get the kit you may be asked if you want a new seal retainer plate , they are expensive so i smeared grease on my original one and reused it , when you trim the seals down again use some feeler guages to get the correct length , its like a lot of things they look difficult until you have all the bits infront of you, if you know what end of a screw driver to use i promise you will have no probs with it . any more questions feel free and keep us posted on how you get on
