Yeah that sucks. They are pretty close but the couple things that are different really screw ya. For some Ford reason they put the sway bar mounts on differently. They point towards eachother instead of like the broncos which face away from eachother. Also the 150's only have one shock so you can access holes on those frames that you can't access on the Bronco (unless you have the one shock option). Lastly the Bronco has a slightly different contour to the bottom of the frame right infront of the shock tower. I can't remember if there is a bracket of some sort or not. Anyway ya live ya learn. Good luck fabbing it to fit.