Want to set my 5100s to 2.5 but worried about vibes

I have bilstein 5100s at 1.75 and want to go to 2.5 but am worried about vibes. Already had front diff bearing problem (4x4) and had replaced/repaired now it rides nice and want more height. What should I do? Anybody running the billies at 2.5 and have problems or suggestions about lift? What AAL should I put in back 1.5 or 2"? Thanks!

 

I have my front lifted to 2.5 with bilsteins at .85 and eibach springs. I have no front vibes. I have a 2 inch AAL and do have vibes from that at 5-10 mph.

 

I have my billys set to 2.5 and haven't had any vibes til recently, so I'm pretty sure it's not related to the shocks.

 

Vibes are going to be hit or miss. Some will have them some will not. The only way to guarantee no vibes is to leave your truck completely stock.