L31MaxExpress
I'm Awesome
Figured out what has knocked out two front seals in 25K miles in my 4L85E. The torque converter support bushing in the pump is smoked. Unit was operating flawlessly to that point. Very clean inside the pan as well. Pump is apart, going to drill the seal drain back to 0.250", install a new bushing, reseal the pump, toss it back in and let it eat. I have a feeling the bushing smoked itself when the seal popped out years ago. 4L80E derivatives are definitely a beast to remove yourself.
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