I have a 99 express 3500 with the 350. it is starting to get a barely noticable knock just when its cold. once it warms up, it goes away. But the engine has 219k miles, and otherwise runs perfect. So, I was thinking of throwing in some new rod/main bearings before I end up spinning one. That brings me to my question...

Is there enough room to remove the oilpan on this van without lifting the engine? Or will i be needing to take out the motor mount bolts and jack the engine up? Any help is appreciated! Thanks