What rear suspension for bracket racing.

The mopar chassis book recommends if using stock springs to clamp the front leaves. If you've done this, what did you use to clamp them? Did you make your own?
I have did this in the past. I got pieces of flat iron 1 inch wide probably 4 inches or so long and 1/8 inch thick. Drilled 3/8 inch holes in them and got the appropriate length bolts. Nuts and washers. Kim