[Huck]

Take a look under the cars used for Nascar---from the bottom, they look a lot like our trucks with trailing arms!! Easy to adjust, simple to align, strong as they need to be---only disadvantage I've seen is their ability to handle heavy loads. The trailing arm suspension has coil springs mounted much closer together then leaf spring suspension----that is why the GMC trucks all have leaf springs mounted way out on the axles--stock. They handle heavy loads a bit better with less sway. Trailing arms ride better with coils. For drag racing---you want a very firm axle from rolling or twisting but the real weakness here is not the trailing arm but the actual axle design. You would be much better off with a ford 8-9" modified design. Easy to change, easy to adjust, and stronger. My .02