70 road runner 440,727 torque flight,driving home after a 40 min cruise on a less then 300 mile tranny rebuild,goosed it to pass an older gentleman who decided to stop in the middle of road,at the point i heard a loud whinning sound from tranny,sounded like a fan belt,got home,noticed at speed and not accelerating noise gone,but got terrible again at the stop light.Got home,let it cool,fluid perfect,no burnet smell,and full.Start it up all normall,until i put in drive or reverse with foot on brake,back to park or neutral no whinning sound,any thoughts where to begin? or do i need to pull the tranny after only 300 miles,any direction would be appreciated,thank you,

Last edited by meepmeep70; 08/30/12 10:51 AM.