Hi Matt, having done a clutch myself (albeit on a Midget, not a B), you might want to consider pulling the engine and transmission, since it's much easier to align the pilot shaft if you have both outside the car. With the Midget I didn't have the option of taking the transmission out by itself, but I only pulled the engine. Believe me, getting the two to go together requires near-perfect alignment, and it's not easy with one of them in the car. One tip though, Moss and the other suppliers offer a $3 plastic alignment tool for making sure the clutch disk is centered, and that's well worth it since it's the same size and shape as the pilot shaft. The transmission still has to be straight with the engine to go together, but they'll never go together if the disk isn't centered. Good luck! Oh, and even though my Midget shop manual never mentioned it, it helps to lightly grease the splines on the pilot shaft as the clutch kit directions recommended. You don't want lots of grease or it might migrate into the friction material, but a film does help things go together smoothly.