I get them at napa or the local tranny shop and dont forget the dealer for a good mopar one

yes,they can be done that way. just not as easy of an install due to clearance at the floor pan

I drop the VB and use a bolt with some washers with a nut to pull it down in the hole

use a screw driver from the bottom when VB out to pop the old one out

I have dont them with the VB in by droping the xmember and tail down some and used a socket that fits over the shaft to drive the seal in with a hammer

dont for get the there is a small seal on the throttle pressure valve stem also,it has an e clip and is an easy one to do with the VB out

if its done with the VB in,dont let it drop down with the e clip off..

IMHO,just drop the VB and do both,less work and headache..

did you get the good reusable pan gasket from the dealer??? well worht the 15$ or so for it

I have reused mine about 6 times on 2 diff trannys