Always check all of the spherical rod-ends for tightness. Both the "ball" end and the stud end. The part in front of the motor, your "steering knuckle" I have also heard called a "bellcrank", or steering "frog". Might check the nylon bushing it rides on. On some sleds, this bellcrank can slide up or down on its post when you turn from side-to-side, causing sloppiness. You can either shim under it, or place shims under the nut and washer at the top, limiting movement. This will help alot. If you have problems with the ski spindle bushings, you can change to ZX-style spindles. They are roughly a 1/2" taller, and you will have to make spacers to compensate. The ZX spindles have a better bushing design, and a much better ski-bumper block on the bottom. I actually installed mine so that I could run the early REV-style "precision skis", 'cause they would not work with the S-chassis ski-bumper blocks. It is rare, but the steering column shaft bushings could be worn or loose as well, as stated above.