How to chage the front pump seal on 89 e-350 with c-6 trannie

I would like to have instructions with picks or a link to instructions with pics on how to change the front pump seal in my trannie on an 89 e-350 van/box with a c-6 trannie.
Thank you.

Hi, Best thing to do is pick up a manual at the local parts store... You are going to find that there is so much room under the van that it really is not a hard job...Good Luck, Clay....