th400 problem. broke.

[YZEATER]

Th400 in my race truck. Full reverse valve body. At the last race , reverseseemed to get weak. Today when I went to load it on The trailer , same thing. At the races right now, made one race and was fine going forward no reverse at all. Next race it shifted all on its own. No reverse at all.

Ideas? Junk?

 

[kevin400ex]

band, servo, or seals.

 

[YZEATER]

Got home early this morning and pulled the pan and changed the filter and added new fluid. Went to our normal mud bog today and got 2 first places, 2 third places and a fourth. Worked mostly perfect all day. May have slipped slightly in the thick mud we had today.