Here's a breakdown of what's likely involved:
* Identify the source of the play: Is it specifically in the gearbox, or could it be in other steering components like the tie rod ends, idler arm, or even worn suspension parts? A thorough inspection by a mechanic is crucial to pinpoint the exact problem. Rattling or knocking sounds might help diagnose the specific culprit.
* Repair (less likely, more expensive): A mechanic *might* be able to rebuild the steering gearbox. This involves disassembling the unit, replacing worn parts like seals, bushings, and possibly the worm gear itself. This is a complex and specialized repair, requiring specialized tools and expertise. It's generally not cost-effective compared to replacement unless you're exceptionally attached to the original gearbox.
* Replacement (most likely, potentially less expensive): Replacing the entire steering gearbox is often the most practical and cost-effective solution. This involves removing the old gearbox, installing a new or remanufactured one, and then properly aligning the steering afterward. This is a job best left to a qualified mechanic.
What NOT to do:
* Don't try to tighten things randomly: There are no easily accessible adjustments on a 1993 Silverado steering gearbox to reduce play. Blindly tightening things could damage components or make the problem worse.
In short: Take your truck to a qualified mechanic. They can diagnose the precise cause of the steering play and recommend the best course of action – whether it's repairing or replacing the steering gearbox, or addressing other steering components. Ignoring steering play is dangerous and could lead to loss of control.
