hondahead'

I have a boosted d16 z6 in a 93 honda del sol, I just recently traded my jdm front teg for it and after a couple days i notice a lil bit of oil leaking between the driver side axel and the rear main seal,it leaks on top of the down pipe so it smokes! thats how i notice the problem, its not a bad leak tho, deff not coming from the turbo or the oil lines from the turbo to the oil pan, so i took the axel out to see if the seal was bad but looks fine, and oil pan looks good, and i didnt wanna mess with the rear main seal if thats not the problem, what else can it be?!