its the same thickness, its like the washer had a smaller inner diameter and was forced down creating the lip/flange/shoulder what ever you want to call it, its right about the same thickness as the rest of the washer, I tried my best to get them to seat together and its the best i could come up with in the pics above of the drum and sunshell,
-Mike
It doesn't look fully seated to me. the lugs should be closer to the bottom , try using a thin blade screw driver to line all the clutches up so you can slide it together in one straight shot , otherwise it takes a lot of turning and hoping it drops eventually.
And that front washer should be at least .060 or more as John K said .
