A Complete Guide to 1964 Buick Wildcat Suspension Parts

The 1964 Buick Wildcat is a classic full-size car known for its powerful engine and smooth ride. But after decades, its suspension system often needs attention. Whether you're restoring a Wildcat to showroom condition or keeping it on the road, understanding the suspension parts and knowing what to look for is essential. This guide covers the key components, their functions, and practical advice for purchasing replacements.

Understanding the 1964 Buick Wildcat Suspension System

The 1964 Wildcat used a front independent suspension with coil springs and control arms, and a rear live axle with leaf springs. The front suspension design is similar to other full-size GM cars of the era (like the Impala and Catalina), but some parts are specific to the Wildcat's heavier weight and longer wheelbase. The rear suspension uses multi-leaf springs, which provide a balance of ride comfort and load capacity.

Key components include upper and lower control arms, ball joints, coil springs, shock absorbers, sway bars, and bushings. Over time, rubber bushings dry out and crack, ball joints wear, and springs can sag. Properly functioning suspension ensures stable handling, even tire wear, and a comfortable ride.

Key Suspension Parts for the 1964 Buick Wildcat

Control Arms and Bushings

The front upper and lower control arms pivot on bushings that absorb road vibrations. Original rubber bushings are prone to deterioration. Replacing them with polyurethane bushings can reduce deflection and improve steering response, though they transmit more road noise. For a stock restoration, OEM-style rubber bushings are preferred. Complete control arm assemblies are available, but many enthusiasts rebuild their original arms with new bushings and ball joints.

Ball Joints

Ball joints connect the control arms to the steering knuckles. On the 1964 Wildcat, the upper ball joint is typically replaceable, while the lower is often pressed into the control arm. Worn ball joints cause clunking noises and loose steering. Always replace both upper and lower ball joints as a set. Quality brands include Moog, AC Delco, and Rare Parts.

Coil Springs and Leaf Springs

Front coil springs support the vehicle weight and determine ride height. Sagging springs lead to a low front end and poor ride quality. Stock replacement springs are available with original ride height and spring rate. For a sportier feel, some owners opt for variable-rate springs or coils with a slightly higher rate. Rear leaf springs should be replaced in pairs. Many suppliers offer standard-duty or heavy-duty leaf springs to match the original load capacity.

Shock Absorbers

Shocks control spring oscillation. The 1964 Wildcat used hydraulic shocks. Today, gas-charged shocks (like KYB, Monroe, or Bilstein) provide better damping and longer life. For a stock look, choose non-adjustable shocks with a black finish. Adjustable shocks are available for those who want to fine-tune the ride.

Sway Bars (Stabilizer Bars)

The front sway bar reduces body roll during cornering. The original bar diameter is about 7/8 inch. Replacement bushings and end links are common wear items. Upgrading to a thicker aftermarket sway bar (1 inch or larger) can improve handling, but may require reinforcing mounting points.

Steering Linkage

Tie rods and the center link (drag link) are part of the steering system. Worn tie rods cause wandering and play. The 1964 Wildcat uses a parallelogram steering linkage with a center link and idler arm. Replace tie rod ends in sets, and check the idler arm for wear. Moog and Rare Parts offer direct-fit parts.

New vs. Rebuilt vs. OEM: What to Choose?

• New aftermarket parts: Most suspension parts are available new from brands like Moog, KYB, and AC Delco. These are generally reliable and affordable. Check for correct part numbers using a 1964 Buick Wildcat-specific catalog.
• Rebuilt parts: Rebuilt steering boxes and control arms are available from specialty companies. They are a good option if NOS (New Old Stock) parts are unavailable.
• NOS (New Old Stock): Original GM parts that were never installed. They can be expensive and may have aged rubber, but for concours restorations they are the gold standard.
• Used parts: Dismantlers and salvage yards can supply original parts, but condition is uncertain. Use only if you can inspect the part thoroughly.

Where to Find 1964 Buick Wildcat Suspension Parts

• Specialty classic car parts suppliers: Companies like OPGI, YearOne, Summit Racing, and Classic Industries carry suspension parts for the 1964 Wildcat. They offer catalogs and online search by make/model/year.
• Local auto parts stores: Chains like AutoZone or Advance Auto can order many parts, but availability for a 1964 Wildcat may be limited. Always verify fitment.
• Online forums and clubs: The Buick Club of America and Wildcat-specific forums have classifieds and recommendations for hard-to-find parts.
• Salvage yards: Specialized vintage GM yards (e.g., Desert Valley Auto Parts) often have original suspension components. Call ahead to check inventory.

Installation Tips

• Safety first: Suspension work involves heavy components under tension. Use jack stands, never rely on a floor jack alone. Compress coil springs with a proper spring compressor.
• Alignment needed: After replacing any steering or suspension component, get a professional wheel alignment. Incorrect alignment can cause rapid tire wear and poor handling.
• Replace in pairs: Always replace shocks, springs, and control arms as a pair (both front or both rear) to maintain balanced performance.
• Torque specs: Use a torque wrench for all fasteners. Loose suspension bolts can be dangerous. Refer to a factory service manual for specifications.
• Inspect related parts: While replacing suspension parts, check brake lines, brake hoses, and wheel bearings. It’s a good time to upgrade to modern components if needed.

Final Recommendations

For most owners of a 1964 Buick Wildcat, the best approach is to replace worn suspension parts with new, quality aftermarket components. Focus on bushings, ball joints, and shocks first—these make the biggest difference in ride and handling. If your Wildcat sits unevenly, replace the coil and leaf springs. Use Moog or AC Delco for steering and suspension parts, and KYB for shocks. For a period-correct restoration, seek NOS or high-quality rubber bushings. Always verify part numbers with a trusted supplier before purchasing. With the right parts and careful installation, your 1964 Wildcat will drive as smoothly as it did when new.