I have a suburban with a SBC 350 that is leaking out the driver side valve cover, but it was manageable until I made more money to repair. Now the passenger side is leaking right above where the plug wires meet plugs, leaking so bad I have oil down the side of my truck! It also won't got past 1st gear, which is a new development that came with the massive leak on the passenger side. I haven't began to replace anything until I know where to start, but I need some SOLID opinions to save this truck. My oil is going everywhere, my wheelwell is wet, drive shafts, tranny, hell even my side steps

 

Did you replace both valve cover gaskets?