Whats all involved.........
Remove the trans using the trans jack (or one floor jack with a piece of plywood supporting the pan) and one jack under the oil pan. You are on your own to get the trans to engine bolts out...
Remove the torque converter (have kittly litter ready)
Remove the seal with either a seal removal tool or BIG screwdriver.
Put some silicone around the outer edge of the seal and carefully tap in place with a small hammer (or the special tool from Snap-on).
Reinstall the torque converter - make sure it goes all the way on. (Mounting flanges for the TC bolts are about 1" behind the front edge of the trans).
Raise the trans and reinstall bolts to engine. The one above the starter (upper one) is a pain in the A$$.
If you have changed the seal in a T350, T400, Glide, C4, C6, Torque Flight, ect they are all about the same.

