Suspension Stabilizer Bar Link Kits for the 1975-1979 Buick Roadmaster
Finding the right stabilizer links for your classic Roadmaster can be a challenge, but it's not impossible.
- Direct-fit aftermarket stabilizer link kits for the 1975-1979 Roadmaster are not available.
- The best solution is to measure your original links and purchase a universal kit from a brand like MOOG.
- Replacement is a simple DIY job that requires lifting the front of the car so both wheels are off the ground.
- Expect to pay between $15 and $40 for a pair of universal link kits.
Symptoms of a Failing Stabilizer Link Kit
When stabilizer bar links wear out, they can cause noticeable issues. The most common sign is a clunking or rattling sound coming from the front suspension, especially when driving over bumps or turning. You might also notice that your Roadmaster leans more than usual in corners or that the steering feels less responsive.
The Challenge: No Direct-Fit Aftermarket Kits
For the 1975-1979 Buick Roadmaster, specific, direct-fit aftermarket stabilizer link kits are generally not produced anymore. The original parts have been discontinued for decades. This means you won't find a part from brands like Moog or Delphi listed specifically for your car at most auto parts stores. However, this doesn't mean you can't get your suspension fixed. It just requires a different approach.
Choosing the Right Part: Your Options
Since you can't buy a direct-fit kit off the shelf, you have three main options: finding a compatible kit from another GM vehicle, using a universal kit, or sourcing New Old Stock (NOS).
1. Compatible and Universal Kits
The 1975-1979 Roadmaster was built on a GM C-body platform, which shared parts with other full-size GM cars. Some parts suppliers list a single kit that covers all full-size Buick models from 1965-1979. These are often simple, non-socket style links that are highly adaptable.
Your best bet is to use a universal stabilizer link kit. Brands like MOOG and Delphi offer universal kits that consist of a long bolt, a sleeve, and a series of bushings and washers. The key is to measure the length and bolt diameter of your original links to buy a universal kit that will fit.
- Pro Tip: Before you order anything, remove one of your old stabilizer links. Measure the length of the bolt and the spacer sleeve. This is the most important information you need to find a suitable universal replacement.
2. New Old Stock (NOS)
It is sometimes possible to find original GM parts that have been sitting on a shelf for decades. These are called New Old Stock (NOS). They are the exact original part but can be very expensive and difficult to find. They may also have degraded rubber components due to age.
| Part Type | Estimated Cost (Pair) | Notes |
|---|---|---|
| New Aftermarket (Direct-Fit) | Not Available | These are not manufactured for this specific model year range. |
| New Aftermarket (Universal) | $15 - $40 | Requires measuring your old parts. Brands like MOOG are a good choice. |
| New OEM (NOS) | $75 - $200+ | Very rare, may have aged rubber. Price varies greatly based on availability. |
| Used OEM | $20 - $60 | Pulled from a donor car. Condition will vary. |
Known Issues, Recalls, and Bulletins
There are no specific recalls or technical service bulletins (TSBs) from the National Highway Traffic Safety Administration (NHTSA) related to the suspension stabilizer bar links for the 1975-1979 Buick Roadmaster. Any recalls for this era are generally for more significant safety issues and are long since expired.
Frequently Asked Questions
Why can't I find a stabilizer link kit listed for my 1977 Roadmaster?
The simple reason is age. Most aftermarket manufacturers have stopped producing low-demand parts for vehicles that are nearly 50 years old. The solution is to use a universal kit or a compatible kit from another GM model.
Can I use a stabilizer link from a 1985 Buick LeSabre on my 1978 Roadmaster?
Probably not. While they are both Buicks, the chassis changed significantly over the years. It is much safer to use a universal kit that you have matched to your original part's measurements. Some parts may interchange with other full-size GM cars from the same era (1971-1978), such as the Oldsmobile Custom Cruiser or Buick Electra.
Is it hard to install a universal stabilizer link kit?
No, it's one of the easier suspension jobs. The difficulty rating is low, and it's very feasible for a DIY mechanic. The key is to make sure the front of the car is lifted safely with both wheels off the ground to take the tension off the stabilizer bar. This makes removing the old links and installing the new ones much easier.
What's the difference between rubber and polyurethane bushings in a universal kit?
Rubber bushings provide a ride similar to the original factory feel, absorbing more vibration. Polyurethane bushings are firmer, which can improve handling response and last longer, but may result in a slightly stiffer ride. For a large cruiser like the Roadmaster, most owners will be happy with standard rubber bushings.
Technical Specifications
No OEM part numbers are readily available. The key specification is the length of the original link's bolt and spacer. This must be measured from the original part before ordering a universal replacement.
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.