2500 Transmission problem

[Glenford44]

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I have an '02 2500 V10 4x4 auto 150k miles. It has always shifted hard into 2nd since I bought it about 2 years ago so shortly after purchasing it I sent it out to have the transmission power purged; the mechanic found a partially broken snap ring so he put the pan back on and left it as is. I replaced a leaky trans cooler line yesterday and today I noticed a significant leak from the small access for the torque converter. It doesn't seem to leak when it's in park or neutral, but it pours out when in reverse, like pouring a bottle of fluid straight onto the ground. I'm pretty mechanically inclined but I am transmission dumb so any light that you guys could shed on this would be extremely helpful.

 

[Glenford44]

This is just from backing into my spot at work this morning.

 

[Glenford44]

And that is several hours old

 

[Merc225hp]

The vent line for these trannys is behind the Tq converter in the bellhousing. Check your fluid level at opt temp and in N see if its over filled.

 

[Glenford44]

Will do first thing in the AM; if it was overfilled wouldn't it vent out all the time?

 

[Glenford44]

The leak has become exponentially worse, couple mechanic friends think it's the input shaft seal; is there any way to change it without dropping the transmission?

 

[Merc225hp]

Nope