Yes it does come with a ton of washers
But after lying under mine for hours,(cheaper than sitting in a bar

) it would not be enough. To use adjustable LCAs to move the diff back some you would also need a longer tri-link, not enough washers for that much adjustment with that bracket.
Plus with a normal lift that we're doing to center the wheel it needs to go back an inch or so, with the lift and the driveline angles the top is already pointed down more than stock so to return it to stock specs would require the top to go back 1.5 to 1.75 inches or more ( at least) I had it all worked out about a year ago but lost my drawings and amounts
SO
longer LCAs
longer tri link
more than likely even longer driveshaft