Just finished up plowing this morning with my 96 F350 and I noticed a rattling noise when ever I accelerate from a dead stop. I have a feeling it's transmission related because it doesnt do it in park. The noise isnt loud but its there and i dont wanna ruin anything by ignoring it. It sounds like its coming from the right under the cab and maybe more so on the passenger side. I have heard it could be something with the torque converter. Any ideas on this?