The M.O.R.E. TJ mounts also offer clearance for the suspension arms to come up as the springs compress. This is important if you are building a custom suspension or engine mounts. If possible, it is best to do them both at the same time to determine clearances. You want the engine to sit as low as possible for stability, but also up enough to keep the oil pan from bashing rocks and other trail obstacles. At the same time you don’t want to limit suspension travel because the axle is going to hit the oil pan, so consider suspension movement.