2015 Ram 1500 Ecodiesel Laramie

Hi all, just purchased a 2015 Ram 1500 Ecodiesel about two months ago...so far so good.

Just had 4" BDS lift installed, with 34.6 BF Goodrich KO2's wrapped around 20x9 chrome XD Monsters. I'm having a little shudder/vibration around 10-20mph - I've already posted in the appropriate section.

Thanks,