I see it's motor oil on your bell housing. If it only goes up to your oil pan around the crankshaft it's probably your rear main seal. Is that oil running down from your transfer case fill plug if so you just need to tighten it up ofcourse
1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.