I put SLR 2'' shakles on and I did't notice it before but now when I turn and go over bumps, ie when pulling out of my drive way, I hear a poppong sound. SHould I be concernd or is it just the springs settling?

I did do a search, but found nothing. Only thing related was grinding noise after adding AAL.
Not the same thing.

Any ideas?

I added the SLR 2" shackles recently as well. Mine dont pop. The only thing I can think of is to chekc how tight you made them. They could be binding on either the leaf springs or the frame if they are too tight.
You could always call SLR and ask for a torque spec for them and adjust them accordingly.

Good luck..

Come to think of it, I did wrench the HEll out of them when I put them on. I suppose I need to buy a torque wrench.

I used my touchy feely wrench and torqued them to approx. shitload foot lbs torque.