The "| 4x4 | LABS" in the previous post is a link to the page on their website about steering. If you scroll down, they list the prices on some of the different combinations of steering components you can buy.
Don't you usually use hi-steer with a lift. Wouldn't the lift allow the steering linkage to be behind the axle and avoid the oil pan?
On your 40, is the steering in front of or behind the axle?