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					Originally Posted by steved0x  When I changed out the oil on my Toyota FJ Cruiser diffs and transfer case, a couple of the Toyota washers were like this (and a couple weren't...) I thought it was odd that they all weren't the same, but with the rolled edge you could really see and feel it crush down when you tightened it. | 
	
 
yeah, probably like most items, they source from the cheapest mfr with the same spec.  
I honestly can't remember the last time I saw a crush-washer like that though.  (I've never owned a toyota, believe it or not!  I might need to rectify that soon!)