A crush collar/sleeve is faster/easier ( that’s why they benefit production assembly lines ) but is not better than using shim stock for final dimensions and tolerances.Ok I'm an idiot. Now this makes sense. I keep adding shims when I should be removing them. Geez I never thought I'd prefer a crush collar like in my 12 bolt rear. Thanks guys!
Chances are that a front Dana 44 application in a half ton rated truck will never overtax a crush sleeve but it is possible.
Your frustration is understandable but if it helps the shim method of achieving preload is the more durable option but more work to achieve the end result.