There are many U bolt plates available today but most are pretty basic. Ours are interesting in that they have 3 options in leaf spring placement so you can adjust WB (or maybe not have to replace a driveline). They are also set up for secure U bolt retention while being able to fit a variety of axle tube diameters (2.75" to 3.5"). They are reinforced laterally with a bend of 45 degrees and we have models that will fit from 1.75" (Scout) to the larger 3" (certain Ford) leaf springs. Check em' out.
Our Ubolts themselves stand alone. No, they aren't the least expensive but they are the best, hands down! We make them Grade 8 with true Tallnuts (Made for Ubolts), and Rolled threads (Way stronger than cut threads), and we don't send you a 3 1/2" U Bolt for every application and call it good.....A U Bolt should fit and thats why we have 7 different sizes!