Your avatar? Or some other vehicle? Got any photos of the suspension? If leaf springs, the lower shock mounts are often a part of the plate that clamps the springs to the axle. They can be separate brackets welded to the axle housing...there are other options. Depends on what you have under the vehicle now. Ray
It's beyond extremely hard to figure out what you are needing without more info and a good photo or two. Most of the AD truck trinket vendors have brackets if you still have the stock springs.
Sorry 54 Chevy truck w leaf springs and a plate top n bottom of perch, but no place to insert the shock bottom. I'm in the voting line so no photos just yet