I agree Mercon V, I just did a fluid filter change on mine, took 8 quarts also blew out all the lines. Are you changing the cooler? They claim you can't flush the thing out, so you need to replace whern you change tranies. I,m stll not sure on mine , I still have the Ford reman here if mine goes.
2003 F-350 4x4, Ext cab. 7.3 AFE stage II 4" turbo back exhaust, garret GTP 38, 1.15 van turbine housing,EBPV deleated, non waste gated, ATS compresor housing, WW II, bellowed up pipes, CFM + spyder conversion, Hydra chip with Bill's tunes, CCV mod, Hutched, harpooned, RR fuel system, 6.0 trans cooler, Swamps IDM, HPX.