'67 Dart drag car with a rack and pinion swap needs some geometry help

The double shear is always better but some times not practical. That said there are a lot of dirt track race cars out there that use the bump steer spacers. Dirt tracks are not known to be the smoothest surface to race on. I have been on tracks that resemble a freshly plowed corn field and the stock spindles with the spacers do hold up surprisingly well.