Re: Stupid question, maybe ?
So it just rolled back as if in neutral..as opposed to being powered backwards? And still moved forward with gas. Is fine I would think. You didn't say what year it is. The Mustang and T-bird automatic transmissions would be different than a fairly new Rangers. Maybe the newer designs also achieve a better no drive/neutral state at idle?
JBA s.s. headers&exhaust, K&N cold air intake, Bosch Iridium Plus 4 plugs, Royal Purple in motor, 5spd & diff.,Superchips programmer, axle girdle. Also have but yet to install KYB Gas-A-Just shocks and Belltech sway bars.