Ok this year we had to put on the locking dipstick on .
what i found is that when you change the fluid the fluid doesn't just drain out its air locked .
When i pull the dipstick out it drains freely .
I run a Tbrake so we do have a vent .
Wondered if my sluggish trans was caused by this vacuum.
I pulled the trans out to put a fresh one in .
I,m drilling a small hole below lock rubber seal .
Don