I pulled into my father-in-law's rather steep driveway tonight, stopped, then tried to inch futher up and my car started to roll backwards (was in D the whole time). Had to goose the throttle to get moving forwards.

Basically it acts like a manual when on a hill and you step off the break.

Is my transmission on the way out?

- With the exception of not getting redline in first under full throttle, my transmission seems to work just fine.

Is this another M119 quirk? BTW 72K on the clock, did my 60K service, new bodwin cable, running Mobil 1 ATF.