inboard spring kit
Here's what I did. For the front I used the existing mounting holes to mount my super top secret... spring relocator system. I only had to tack weld the other side to the inner frame rail for racing or simply drill and install a bolt for street use. For the rear I simply took the existing mount and after notching the frame rail enough for the bushing tube, slid the mount onto the frame and welded-er up. This "jacks up" the rear end about an inch to an inch and a half though. Was going to patent it and market it but then lots of bad things happened in my life and haven't done anything with it since.