My list of such items grows longer. The one I like (hate) the most is a bump stop of a different kind. The steering gear pitman has design that will provide a mechanical lmit to the amount of turning one can do. Without this adjustable stop, one could turn the front so much the tires hit the trailing arm knuckle. Ask me how I know. i have the JPS hybrid tube chassis and this involves some custom framework at front . This frame work involves the aforementioned mechanical stops. My frame members had the appropriate threaded nut welded in the exact right place to hold a bolt and locknut that would provide that adjustable steering limiter. Only one thing wrong: nobody installed the adjuster bolt. I nearly had a blow out from the tire that rubbed almost through the cords on the inner sidewall before I tumbled to this. John did make good by sending me a new tire. So at JPS anything is possible. I'm more than 10 years out and one could say I'm still sorting ... On the positive side: when the car is running right it is pretty much right good fast fun.