Speedway deluxe king pins are a great improvement over stock-style king pins. They replace the original brass king pin bushings with precision needle bearings that provide superior strength, better lubrication and easier steering. Theyre simple to install and are an easy, cost-effective way to upgrade your 1942-1948Fits Ford suspension, as well as tubular or I-beam street rod axles using 1942-48Fits Ford spindles.