i was going to ask what exactly you meant by "the pins" and yes i lowered the front, but i did it the next day, and noticed the steering wheel being crooked while driving it with just the rear lowered
there is a bolt (pin) that goes through the leaf pack. the lowering block must sit on that pin. the block has a pin in the top of it that needs to be inserted into a hole thats in the bottom of the rearend. that keeps everything lined up.
when you change the front end, it changes the geometry. so you will need a front end alignment. that may fix your problem. if not, if the truck is still dog walking, you may need to pull the steering wheel.