Merry Xmas too, I use super grey, replace both seals, use too much silicone, better than not enough, it's all done with the engine and trans in place and there is a longitudinal clearance to adhere to with the sump and block, look it up. The manual will show you how to do it.
Loving driving the WM Caprice now, I decreased the shift timing and it loves it, the new tune is night and day difference, who would have thought 15rwkw could make that much difference?! Can't wait for my hectic cam to arrive, it'll be sick. My mate has also ordered cam and other parts for his LS3 powered WN, I'll get it all done when he's ready.
Here's a photo of my BF MK2 XR6 turbo that I still own, just in case anyone thinks I ain't got a spot for the turbo Barras