I had noticed puddles in my drive so I replaced the valve covers, thought it was coming from the back of of covers. I'm still leaking somewhere? The drip is coming off the bell housing for the transmission. I can't see where its coming from. Where could oil be leaking from the back of the engine knowing the valve covers are new?

 

it sounds like you need to replace a gasket

 

My guess is the rear main seal... that requires a tranny drop to replace.

 

Rear Main. This is extremely common. I just replaced my front main seal while I was putting a new oem water pump on. The front is a piece of cake compared to the rear. Good luck.