Transmission fluid leaking from bell housing 2005 Mitsubishi endeavour LS

What is your question?

Transmission fluid leaking from bell housing 2005 Mitsubishi endeavour LS , only when in drive it pours out ... There's transmission fluid inside my starter from the flywheel throwing it around .... Do I have to remove the entire transmission to fix this ? Or can it be done while still in vehicle?

What makes this problem better or worse?

While in gear driving

How long has your 2005 Mitsubishi Endeavor had this problem?

Since yesterday when i replaced the starter and spark plugs