Hey I have a 93 5.0 LX with an AOD tranny...I just bought it about a month ago and it has seemed to do fine but the other day on the interstate around 65-70 mph the OD started to slip just all of a sudden, I immediately shifted to drive and it does perfect...There's no hesitation when shifting into gears, no change when the tranny is cool, warm, etc... It works fine up to around 40 mph when left in overdrive, any advice?