Had my Nitro 2 days and got the "SHUDDER" been in the shop 11 days. First day they said computer flash updated said it was fine less than a block from dealership noticed it still there took it back now it is the torque converter should be able to get it today hope it is fixed I love it but I will never trust it. I have black 4x2 SLT from what I have read afraid transmission is next or it may never be right