From under the crank pulley? I assume you changed the front main seal when you had it apart. Did you make sure the crank wasn't grooved where the seal rides? There is a sleeve available to cover this area in case of a groove caused by the original seal wearing out. Sometimes you can get away with putting the new seal on in a slightly different position, but with the ease of a sleeve why risk it.

1988 4Runner V-6 Auto, Locked out back, LSD up front, some lift, some tire, and a casual attitude towards body damage.