Forget about the oil. :nope:
Adjust the ride height by turning the adjusting nut on the threaded shocks. Start with the rear and set the rear arms level looking at it from the rear. when you have the rear adjusted you can adjust the front up or down to get the chassis level front to rear. When you have front to rear level adjusted you can tweek left to right balance. To tweek L/R balance, place truck on a flat level surface, find the center line of the truck (between front bumper mounting screws and rear trans mount screws). Use an x-acto or small tip screw driver and slowly raise the wheels (one end at a time) off the surface. Both tires should leave the surface at the same time. If not, adjust by tightening the spring on the opposite corner of the highest tire or loosen the spring on the same side (ie; if you are checking the front wheels, and the left front comes off the surface first, you will tighten the right rear or loosen the left rear until both front wheels come off the surface at the same time).
If you still don't understand how to adjust the left to right balance, let me know and I will try to explain it in more detail. :hammer: