Hello Tommy, From memory I am pretty sure that the sump has to come off as part of the oil pump sticks out into the sump I think. To remove the sump you need to either slide the engine forward or move the gearbox back to get at two bolts. You will also need to remove the front diff assembly to drop the sump down. Have a look at this site for more info http://www.navaraownersclub.com/2009/10/the-infamous-d22-engine-problem/