Shudder is slipping...death knoll...not gonna get better...it will start in higher gears (more load) and work it's way down. If it's doing it in lower gears now..not good. If you wanna keep it an auto, send it to 517 Transmission. He told me he custom fabs parts to make it stronger and last longer. Don't ask me what parts, but everyone seems to be happy with his work.