i assume the oil pan gasket is leaking pretty bad, cause when i get on the gas hard i leave a cloud of smoke thats burning off my H pipe. i put in a new oil sending unit so i know its not coming from there. valve covers arent leaking and i put a new rear main seal in when i put in the 5 speed. i've had three people look at it and the only thing anyone comes up with is oil pan gasket. so main questions are, do i have to take one or both motor mounts loose and does anyone know of a walk through for this. thanks guys