Hi everyone please help. I have a 1985 TA. 700r4. I lost drive gear without warning just a sudden slip and then it's like it went into neutral. I still have manual 1st and 2nd. I tore it down and cannot find a thing wrong. The forward sprag looks fine. The only place I see ANY wear is in the servo bore area. The band is a little burned looking but thats the only place I see any wear. I have never seen that cause my problem before. Many thanks for any help!!