I have a 97 ford ranger I bought used. They owner before me put extra leaf springs in the back for hauling wood. I want to level the truck but I'm not sure the best/ most efficient and in-expensive way. I tried spring assisters and they didn't do anything. I believe I have an ifs front axle. Any ideas would be greatly appreciated. Thanks

 

An IFS system will have two torsion bars going from under the door area, to the front suspension arm. To level, park on level ground, mesure the height from ground to bottom of wheel well in back, do the same in front. Lift the front tire off the ground for a total of the difference in measurments, and crank your torsion keys till the tire sits on the ground.
Here's a gould how-to on the matter:
How to crank the torsion bars on a ford Ranger for more lift

 

a 97 ranger is TTB (Twin Traction Beam) and doesn't have torsion bars. You can get leveling coils or something in the front and add-a-leaf in the rear.