Went in for an inspection today and I passed, but the mechanic said the oil pan is weeping oil due to rust. He's not lying either, the pan is rusted bad and I am losing oil between oil changes. Does the exhaust system need to be dropped to do the oil pan? My exhaust system bolts are rusted to say the least. The exhaust manifold bolts and gasket are brand new however. Should I just unbolt the manifold and drop the exhaust that way? Should I try to pull out the J-pipe studs, drop it that way, then replace the studs with stainless hex bolts (I already have the bolts)?