There's a strong possibility the previous owner pushed the axle back during his lift install. This is quite common. An arched ( lift ) spring generally
pulls the axle forward in the wheel well at rest. The non centered look bothers a lot of people. To correct this they push the axle back. The are two easy ways of shifting the axle back are flipping the springs or re-drilling the perches. The springs have a short and long side. The short side is normally installed forward, on the rear spring, to the fixed hanger. By flipping the spring around, long side forward , you gain 3~4" of wheel base. Re-drilling the perches involves rolling the axle over and drilling new holes for the spring center pin to rest in. You're limited as to how far you can go by the available material on the perch. Generally you can move the axle 1 1/4~ 1 1/2" before you run out of room on the perch. You can usually peek inside the perch, from the front and see the center pin protruding through the perch. If it's forward of center, this is what's been done
