1991-99 3000GT & Stealth FWD Steering Rack: Leaks, Noises, and Replacement Guide

Compatibility Warning: FWD Models Only

Symptoms of a Failing Steering Rack

A failing steering rack on a 3000GT or Stealth will give several distinct warnings. The most common issues stem from internal seals wearing out over time.

1. Power Steering Fluid Leaks

This is the most common sign of failure. The internal seals of the rack wear out, allowing reddish-brown power steering fluid (which is actually Automatic Transmission Fluid in these cars) to leak. This fluid collects inside the rubber accordion-like boots on either end of the rack. Eventually, the boots fill up and the fluid drips onto the ground, typically just inside the front wheels. You may also notice a constantly low power steering fluid reservoir.

2. Whining or Groaning Noises When Turning

A whining or groaning sound that gets louder when you turn the steering wheel is a classic symptom. This noise is usually caused by the power steering pump being starved of fluid due to a leak in the rack. The pump is working harder to build pressure, resulting in the noise. A burning smell can also occur if the fluid level gets extremely low and the rack overheats.

3. Loose or Vague Steering

If your steering feels sloppy, has excessive "play," or you notice a dead spot when turning the wheel, it can indicate wear inside the rack and pinion assembly. This can also be caused by worn inner tie rods, which are considered part of the steering rack assembly. This looseness can make the car feel unstable and wander on the highway.

4. Clunking or Knocking Sounds

A clunking or knocking sound when going over bumps or turning can be a sign of worn-out inner tie rods. Since the inner tie rods are integral to the steering rack, they are replaced along with the entire rack assembly. To check, you can jack up the front of the car and try to wiggle the wheel side-to-side; any play or clunking could point to a bad tie rod.

Buying a Used Steering Gear Poppet Rack

Given the age of these vehicles, a quality used OEM steering rack is often a practical and reliable choice. Here’s what to look for.

Physical Inspection Checklist

• Verify FWD Compatibility: Double-check that the part is from a FWD 3000GT or Stealth. An AWD rack will not bolt up to your car.
• Inspect the Bellows Boots: The rubber boots on each end should be free of rips, tears, or cracks. Torn boots allow dirt and water to enter the rack, destroying the seals and inner tie rods. 🎬 See how to replace damaged steering rack boots. Even if the rack isn't leaking yet, torn boots mean it will fail soon.
• Check for Leaks: Squeeze the boots. If you feel or hear fluid sloshing inside, or if fluid drips out, the internal seals have failed and the rack is bad.
• Examine the Input Shaft: Look at the splined shaft where the steering column connects. Ensure the splines are clean and not damaged or twisted.
• Look for Corrosion: Check the hard metal fluid lines that run across the rack. These can rust and develop pinhole leaks, which is a common failure point. Heavy corrosion on the main body of the rack is also a red flag.

Mileage vs. Condition

For a part that is over 20 years old, physical condition is more important than mileage. A low-mileage rack from a car that has been sitting for a decade may have dried-out, brittle seals that will fail quickly once put back into service. A rack from a well-maintained, higher-mileage daily driver might be in better condition. Focus on the physical inspection points above all else.

Replacement Overview and Related Parts

Replacing the steering rack on a 3000GT or Stealth is a difficult and labor-intensive job, rated as a 4 or 5 out of 5 for DIY difficulty. It often requires lowering the front subframe to gain enough clearance to remove the rack from the vehicle.

Parts to Replace at the Same Time:

• Outer Tie Rod Ends: It is highly recommended to install new outer tie rod ends when replacing the rack. You will need an alignment anyway, so this is the perfect time.
• Power Steering Fluid: Completely flush the system and refill with the correct fluid. These cars typically use Automatic Transmission Fluid (ATF) DEXRON-II or DEXRON-III, not standard power steering fluid. Using the wrong fluid can damage seals.
• Power Steering Hoses: Inspect the high-pressure and return lines. If they are old, brittle, or leaking, replace them now while you have access.
• Wheel Alignment: A full four-wheel alignment is mandatory after replacing the steering rack to ensure proper handling and prevent tire wear.

Cost Comparison

Prices can vary based on supplier and availability. These are estimates as of late 2025.

Known Issues, Recalls, and TSBs

As of early 2026, there are no specific NHTSA recalls for the steering rack itself on the 1991-1999 Mitsubishi 3000GT or 1991-1996 Dodge Stealth. Most issues are related to age and wear, particularly seal degradation and corrosion of fluid lines. There was a recall on some later model Mitsubishi Lancers for a power steering tube that could rust and leak, but this did not apply to the 3000GT/Stealth platform.

Frequently Asked Questions (FAQ)