4l60e Leaking from the shifter adjuster??
Remove shift cable from lever, remove nut while holding lever (with large crescent wrench), remove lever, with awl poke into and pry out seal, clean between shaft/bore, inspect for damage, lube new seal, install new seal by tapping in with hammer on socket, install lever/nut, tighten while holding lever, install shift cable to lever.
Check fluid level.






