OK this is the first time I have seen this wheel shims and am hoping someone out there has an answer for me so I can get these installed before Monday.
I ordered a 23X3.5 front and an 18X5.5 rear 60 spoke laced DNA wheel for an 08 Softail Night train. I had these wheels shipped to me disassembled so I could powder coat them.
The stock hub spacing on the rear was 6", I got a 1/2" spacer to make up for the difference in hub width. This will go on the brake rotor side. It came with three wheel bearings for the rear wheel, I am assuming that the brake side will have two wheel bearings (one in the hub and one in the spacer)? I also received three shims, one labeled 140 rotor sice, and two labeled 100 single sice. I have no idea where these shims go! Any help to get this together today would be awesome!

Here are some pics of what I have. Bearings are not pictured, they are in my freezer, hopefully this will aid in the install.

 

If you get no answer, I would start assembling it all and it might make better sense where they go once you're into it. If you complete the install and you don't come across anyway they could go in, and it all fits up nice and snug...then maybe they weren't needed with your setup. My guess is though you'll find a gap some where that will be the width of one or two of those shims, can't be too hard. Not what you probably wanted to hear but it looks like no one else has answers either

 

The inner spacer and wheel bearing width was the same as the stock setup without those shims. I installed the bearings without the shims. havent gotten the wheels final installed but threw it on the bike with just the axles and everything seems fine. will post more after I get the wheels installed.