Does a deep oil sump make a difference?
Theoretically, yes. But, experience has shown that it has not made a big difference. A big drawback of the deep sump oil pan, is it reduces the CJ750 ground clearance. Off-road, this can be very detrimental; it is east to damage the deep oil sump. When buying the deep sump, make sure that the shop knows how to modify the oil pump so that it can draw the oil from lower in the sump, than the stock oil pump. All the oil will not be circulated if you do not lower the oil pump suction point. Many shops will gladly install the deep sump, and not make any change to the oil pump.
