I have a 97 F-250, 460, 4x4, E4OD. My old man works for ford and he got me a factory re-man tranny w/ tourque converter after mine started slipping, and didnt want to get stuck some where with the camper on the back. So my issue is the fluid level. I put a bigger B&M tranny cooler in to help with the heat from yanking the boat/camper in the Black hills of SD. Driving around town, the fluid level never moves. No matter how much or how I drive it. But if I jump on the freeway and do 70mph, or hook up the toys, the fluid level rises a qt. I have drained the fluid to just above the bottom of the hash mark on the dip stick, and have kept it there since I put the trans in and figured this out. I have about 9000 miles on the trans and it still shifts like it did when I put it in. If I get off the free way and let it sit at idle for a few minutes... maybe 5... it goes back to where I had it. Should I leave the fluid level where it is or shold I add/subtract some? I know too much is just as bad as not enough. Just dont want to replace it again! Thanks again guys

 

I would leave the fluid where it is.