In any off road vehicle oil pan control of the oil is very important. Every time you hit a bump the oil in the stock pan is slouched up on the spinning crankshaft. This wall of oil hitting a 4,000 RPM crank slows it down and its a huge loss in power and froths up the oil. Frothy oil does not lube bearings.....
By putting in some simple baffles to stop that oil wall slouching up will free up some power. Works on the street too but so much better off road.
I do not remember if it was Smokie or Shelby that wanted to know how the oil responded in a race car so he filled up the pan and strapped it down to the right seat and went around the race track to see. Added baffles to help keep the oil in the pan.