Slack in steering shaft

The steering shaft coupling seal is sold separately, but it also comes in a complete repair kit for about $10 (if I recall correctly). The "coupling" is that grease-filled wiggly piece at the very end of your steering column shaft that is splined on the inside to fit over your steering gearbox input shaft. The "seal" is that rubber piece on the top of it that your steering shaft slips through. Many of us have rebuilt those couplings over the years and can walk you through that.