First, you must know the diameter of the rod, and it must be measured on the threaded end. Then measure the inside width at the end of the radius of the inside bend. Next, measure the inside length from the center of the radius of the inside bend. Now that you have taken the measurement of the rod, you must determine the style of the top, is it a "Round, Square, or a Semi-Round" radius? The best thing to do is bring a sample into one of our experienced parts or service technicians, and they will assist you with what you need.

No. When a U-bolt is tightened to its recommended torque level, the bolt stretches as it conforms to it's seating and the threads stretch as they mate with the hi-nuts. Removing the nuts from a stretched U-bolt will cause a cross threading that will not allow the U-bolt to be adequately retightened. Because a properly installed U-bolt is stretched it should never be reused!

Yes. After 1000 miles, because they will slightly loosen at first due to normal road vibrations.

Your PSD parts and service center can supply with many options. They include: Steel Leaf Helper Kits; Extra Spring leaves that can be added to your existing springs(in most cases); Timbren Load Booster Kits, Air Ride and Air Lift airspring helper kits.