Yea, I went to their website for the 1st time in a couple of years and it is out of control....I couldn't find anything but everything...
In the past I have produced small miracles using the 638 compound, but if I were doing it today, I would probably use the 660. Since you are using a non-ferrous shim, an additional filler/surface prep may be necessary but you might get by w/o it. Here is a link you may find useful. There is a step by step guide to assist.
https://www.henkel-adhesives.com/us/en/product/retaining-compounds/loctite_6600.html
They don't mention the peening process but I am a BIG FAN of doing it. That link is here.
https://www.mrosupply.com/blog/loose-bearing-race-how-to-deal-with-it/
If any problems, let me know.....