No, not Chrysler products but I know Ford did. Neutral drop a C4 or a C6 an it might be the last time for it lol. I found out that Ford had the valve when I got my sister's 65 Mudstain stuck. A little too much throttle and you lost the rocking motion to get out of the stuck spot when the trans wouldn't engage and it didn't take much for that to happen. I remember when my dad was looking at cars in the mid 50's and the salesman showed him how tough the transmissions were (really?) by hitting the R button while doing 40 mph and then pressing D and just kept on going. Back then IIRC, they had rear pumps and you could push start an automatic. The salesman only left the R button pushed in briefly but the car nosed over and then pressed D again. Dad bought a demo 56 Belvedere (how many times did that demo take place lol) and we kept it until 63 which was pretty good for living in the rust belt.