I think that is a different problem than the one I'm having. I remember reading somewhere in this thread that the 05 model year was not known for this problem. What I have is a just an RPM increase without a vehicle speed increase that lasts a few seconds then acceleration continues with no bumps or jerks, all very smooth and limited to the 2nd to 3rd gear shift only. Yours almost sounds like what you would see with a bad U joint in a rear wheel drive vehicle, since it sounds like it depends on load, but that's just an un-educated guess. Good luck