well, i have a 1/4" sticking out in the front and the back anchors. was your back one like that as well or was it flush? the pics you have in the instructions only talk show the front one clearly, the back one is covered by the boot.
speaking of the boot, you need to add in your howto, to add the boot before greasing the splines. I almost forgot to put it on. kennedy reminded me of it. also you make almost no mention of the brass washer in there, where it goes and things like that. that might be valuable to add in there cause when i was having troubles, i thought for a bit that it was becuase of the washer, but it wasn't.