If the tranny leaks at the front seal, it's probably because the bushing in the front pump is worn. It supports the backside of the torque converter. I would replace that bushing - it's about $10, and you'll need to replace the front pump gasket too. If you don't, your new seal will probably start leaking pretty fast.

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.