I have a 1995 F150 4.9L 2wd with a 5 speed manual. 100k miles. After driving for 10-15 miles, after shifting into 2nd and/or 3rd gear (post clutch release with a couple hundred rpm build) under load a loud screech from the transmission is heard. It does not do it when the vehicle is cold and as soon as you let off the gas or take it out of gear the sound stops. It also does not happen in 1st, 4th or 5th, although it feels like it is hitting a wall when you try to drive in 5th gear. The fluid has been checked and is full. The dealer says they can not find anything wrong with it. Has anyone else had something similar happen?