Bilstein 5100 adjustable fronts. They are adjustable at 0, 7/8", 1 3/4", 2 1/2". They are shocks with a snap ring and 4 groves, your bottom spring plate sits on the snap ring. The shock is about 1" longer than stock for the longer travel, plus they don't put your A arms in as much a bind. Way better than lift blocks on top of your springs. Plus you get a set of the finest shocks made out of the deal. I've done both. Just had a set of 5100 adjustables put on my new Tacoma yesterday set at 1 3/4", leveled it perfect.
Set of 5100s to my door was $212, install with front end alignment was another $150.
I put the Bilstein 5100's on my F150 in November. Leveled my truck 2" and now have 35" Nitto Trail Grapplers for shoes.