Chances are it is the rear main. However, make sure it isn't leaking from the intake or a valve cover and running down between the engine and trans.
As far as doing it, if you have the mechanical ability, it can be done at home, but it is a big job. The trans will need removed, the oil pan from the engine needs removed. All of this requires basic tools (nothing special).
Saturday, August 24th, 2013 AT 7:34 PM