Ford F-250 Transmission Slip

I Am Working On A Ford F250 With A Slipping Transmission. I Would Like To Do Pressure Tests On It Before I Take It Apart. Is There Only One...

I Recently Got A 92 Ford F-250 On Trade, And Later Found The Transmission Slips After Being Driven For Awhile. When I First Get Into It And...

My Transmission Started Slipping When It Tries To Downshift. If I Manually Downshift To 2nd It Will Go, But Slams Pretty Hard. The Fluid...