this also means the fluid level would have been a little overfilled as well ......You mentioning the 351 needed a new mount saved my butt. I had a dipstick leak on my Explorer efi and explorer 4r70w I bolted on a 351 block.
I got to thinking about the 351 being a taller block and unbolted the explorer dipstick from the head and it allowed the stock explorer dipstick to drop about 1" and seat properly in the trans.
Leak fixed.










