Eliminate unwanted bump steer after you have lowered your 69-89 Porsche 911 or 930. A complete kit that includes spacers that we computer designed to correct the bump steer on a car lowered to the lowest height we recommend, which puts the front A-arms parallel to the ground. The height can be further tuned by using washers to change the height of the bump steer spacer. The spacers are made from 6061 T-6 aircraft grade aluminum, the kit includes grade 8 hardware. The rod ends are Teflon lined for low friction and long life and include seals to keep dirt out. You must have turbo tie rods to use this kit. We also have designed a longer spacer for use with raised spindle RSR struts. If you would like that spacer instead it can be substituted at no additional cost.