Steering Gear Guide for the 1986-1994 GMC Jimmy
Stop the wandering and tighten up your steering with the right replacement steering gear.
- The most common failure symptom is excessive steering play or 'wander'.
- Before replacing the gearbox, inspect the much cheaper and easier to replace 'rag joint' as it is a very common cause of steering slop.
- New aftermarket parts from brands like PWR offer higher reliability at a premium price, while remanufactured parts from brands like Cardone are a budget option with inconsistent quality.
- A front-end alignment is required after replacing the steering gear to ensure proper handling and prevent tire wear.
Is Your GMC Jimmy's Steering Feeling Loose?
If you own a 1986-1994 GMC Jimmy, you're likely familiar with its classic truck-based handling. However, a common issue as these vehicles age is a gradual decline in steering precision. The most frequent cause is a worn-out steering gearbox. Symptoms often start small but can worsen over time, affecting both safety and driving enjoyment.
Top 5 Symptoms of a Failing Steering Gear
- Steering Wheel Play or "Slop": This is the most common complaint. You might find you can move the steering wheel several inches before the truck actually starts to turn. This is often called "wander," as you have to constantly make small corrections to keep the truck driving straight.
- Fluid Leaks: Reddish power steering fluid puddling under the front of your truck is a clear sign of a problem. Leaks can come from the seals where the steering shaft enters (input shaft) or where the pitman arm connects (output shaft).
- Grinding or Popping Noises: Hearing grinding, popping, or clunking sounds when you turn the wheel, especially at low speeds, can point to worn internal gears.
- Binding or Sticking: The steering may feel unusually tight, get stuck, or be difficult to turn in one or both directions. This indicates a serious internal problem with the gearbox.
- A Burning Smell: If power steering fluid leaks onto a hot exhaust manifold, it will create a distinct burning oil smell.
Check the Rag Joint First!
Before you condemn your steering gear, check the condition of the steering coupler, also known as the "rag joint." This is a small, flexible disc that connects the steering column shaft to the input shaft of the steering gear. They are a very common wear item on these trucks and can cause significant steering slop. Replacing a worn rag joint is cheaper and easier than replacing the whole gearbox and might solve your problem.
Choosing the Right Aftermarket Steering Gear
For a vehicle of this era, finding a brand new OEM part from GM is nearly impossible. Your choice is between remanufactured parts and new aftermarket parts. The quality and price can vary significantly.
Brand Quality: Honest Assessments
Based on forum discussions and owner reviews, the quality of aftermarket steering gears can be inconsistent. Here's a straightforward breakdown of the brands available:
- PWR (New Aftermarket): PWR specializes in 100% new steering components, not remanufactured ones. This means you get a part with no previous wear or hidden damage. They are engineered in the US and are designed to meet or exceed OEM standards. The trade-off is a significantly higher price, but it's an option for those who want the peace of mind of a brand-new part without the history of a remanufactured unit.
- Cardone (Remanufactured): Cardone is one of the largest remanufacturers in the industry. Their parts are widely available and affordable. However, quality can be a "hit or miss" gamble. Some owners have used them for years without issue, while others report receiving a poorly rebuilt unit that leaks or has play right out of the box. The quality of the final product often depends on the condition of the original core that was rebuilt.
- BBB Industries (Remanufactured): Based on numerous owner experiences shared in forums and videos, BBB Industries steering gears have a poor reputation for quality. Reports of receiving rusty, poorly assembled, or quickly failing parts are common. Given the critical nature of steering components, it is difficult to recommend this brand.
A Note on Remanufactured Parts
Many remanufactured steering gears are simply disassembled, cleaned, and reassembled with new seals. This stops leaks, but it may not fix the internal wear that causes steering play. This is why some remanufactured units feel sloppy from day one. If you choose a remanufactured part, be prepared for the possibility of a warranty exchange.
How Much Does a New Steering Gear Cost?
The price you'll pay depends on the type of part you choose and whether you do the work yourself.
| Part Type | Estimated Cost | Notes |
|---|---|---|
| New Aftermarket (PWR) | $650 - $870 | Highest cost, but 100% new components. |
| Remanufactured (Cardone) | $197 - $300 | Lower cost, but quality can be inconsistent. Often requires a core charge. |
| Shop Labor | $200 - $350 | Labor costs for a professional mechanic to perform the replacement. |
Frequently Asked Questions
Were there any recalls on the 1986-1994 GMC Jimmy steering gear?
No, searches of the NHTSA database did not find any specific recalls or technical service bulletins (TSBs) for the steering gearbox on the 1986-1994 GMC Jimmy. Recalls found were for much newer GM vehicles with different steering systems.
Is replacing the steering gear a DIY job?
For an experienced home mechanic, yes. However, the gearbox is very heavy and awkward to handle. You will need a good set of tools, including a pitman arm puller, and you must follow a specific procedure to bleed the air out of the power steering system after installation. If you are not comfortable with this, it is best left to a professional.
What other parts should I replace at the same time?
While the system is apart, it is the perfect time to inspect the pitman arm, idler arm, tie rod ends, and especially the rag joint. Worn-out tie rods or a bad idler arm can also cause steering looseness. At a minimum, you will need to perform a complete power steering fluid flush and get a front-end alignment after the job is done.
What is a core charge?
When you buy a remanufactured part like a steering gear, you will often pay an extra fee called a core charge. This charge is refunded to you when you return your old, worn-out part to the seller. The manufacturer needs these old parts (cores) to rebuild for the next customer.
Technical Specifications
This vehicle uses a Saginaw-style hydraulic power steering gearbox. Both standard and quick ratio versions may be available. Ensure the hose fitting types (O-ring or flare) match your vehicle's power steering lines, as this can vary.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- GMC Jimmy:
- 🛍️ Shop This Part
- Is Your GMC Jimmy's Steering Feeling Loose?
- Top 5 Symptoms of a Failing Steering Gear
- Check the Rag Joint First!
- Choosing the Right Aftermarket Steering Gear
- Brand Quality: Honest Assessments
- A Note on Remanufactured Parts
- How Much Does a New Steering Gear Cost?
- Frequently Asked Questions
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