Front Brake rod initial adjustment

[Smooth_One]

I'm just finishing up the front brakes on my 28 and was just wondering where to set the clevis at the end of the brake rod to get a good starting point to begin adjusting the brakes?
I've replaced all the service brake and parking brake rods and anti rattlers as well.
So I guess my question is what is the correct length from brake rod eye to clevis eye or how much of the threads should be exposed at the end of the rod to get a good starting point?
And do I need shims with the operating pins if everything is new?
Thanks, Isaiah.