wild guess, but maybe it's your cv boots spitting some grease out.i'm needing some answers here and i know you guys can answer them.
2) i just added a 3in suspension lift to my truck along with new rims and 285/75/16 pro-comps. today i noticed some greese spatters down the side of my truck on both sides. i've crawled under it and didn't see anything leaking. any ideas? i'm hoping i just drove over something and it sprayed on my truck.