1964 Chevy Impala Suspension Part Map: A Complete Guide to Front and Rear Components

The 1964 Chevy Impala is a classic cruiser with a suspension system that’s both durable and straightforward to service. Whether you’re restoring a full-size sedan or just need to replace worn components, having a clear suspension part map helps you identify every piece from the control arms to the rear leaf springs. This guide breaks down the front and rear suspension into individual parts, their locations, and what they do—so you can tackle projects with confidence.

Front Suspension Components

The 1964 Impala uses an independent front suspension with coil springs and unequal-length A-arms. This setup provides a smooth ride and predictable handling. Here’s a breakdown of each part and where it sits.

Upper and Lower Control Arms

The upper control arm mounts to the frame at the top and connects to the steering knuckle via a ball joint. The lower control arm is larger, attaches lower on the frame, and also uses a ball joint. Both arms pivot on rubber bushings that can wear over time, causing clunks or wandering steering. When replacing, use quality greaseable ball joints and polyurethane bushings for longer life.

Coil Springs

The coil spring sits between the lower control arm and a pocket in the frame. It supports the vehicle’s weight and absorbs road impacts. Springs sag with age; measure ride height to check. Standard replacement springs are available, but if you’re lowering the car, use specific drop springs designed for the Impala.

Shock Absorbers

Front shocks mount through the lower control arm to the frame. They dampen spring oscillation. For a stock ride, gas-charged shocks work well. For better control, consider adjustable shocks. Replace in pairs.

Stabilizer Bar (Sway Bar)

The front sway bar connects both lower control arms and mounts to the frame with bushings and links. It reduces body roll in corners. Bushings and end links are common wear items. Upgrading to a thicker bar improves handling without harshness.

Steering Knuckle and Spindle

The steering knuckle carries the wheel hub, brake backing plate, and attaches to both ball joints. The spindle is part of the knuckle where the wheel bearings ride. Inspect for cracks or bent parts after an accident. Use new bearings and seals during reassembly.

Ball Joints

Ball joints connect the control arms to the steering knuckle. The upper ball joint is typically smaller and has a grease fitting. The lower ball joint carries more load. Check for play by jacking the car and prying the wheel. Replace if loose.

Control Arm Bushings

Each control arm has inner bushings where it bolts to the frame. These can crack and compress, leading to alignment issues. Press-in rubber or polyurethane replacements are common. Polyurethane stiffens the ride but lasts longer.

Coil Spring Insulators

A rubber insulator sits between the coil spring and the frame. It reduces noise and prevents metal‑to‑metal contact. Replace if torn or missing.

Rear Suspension Components

The 1964 Chevy Impala uses a solid rear axle with leaf springs. This simple setup is easy to maintain and modify. Here’s the rear suspension part map.

Leaf Springs

Two multi-leaf springs support the rear axle. They are attached at the front with a bushing and shackle at the rear. Springs can sag or lose their arch; replace both sides together. Add a leaf or use heavy‑duty springs if towing or carrying heavy loads.

Shock Absorbers

Rear shocks mount from a bracket on the axle tube to a frame crossmember. They control rebound and compression. Use shocks matched to your spring rate. Gas shocks help reduce fade.

U‑Bolts and Plates

The leaf springs are clamped to the axle tube by U‑bolts and a top plate. These must be torqued correctly. The plate also positions the spring pads. Replace U‑bolts if rusted or after spring replacement.

Shackles and Bushings

The rear of each spring is attached to a shackle that pivots on the frame. The bushings wear out and cause clunks. Upgrade to greasable shackles for easier maintenance.

Spring Perches and Pads

Pads sit between the spring and axle to reduce vibration. Perches are welded to the axle tube; if your car has been modified, ensure the pinion angle is correct.

Track Bar (Optional on Some Models)

Some 1964 Impalas came with a rear track bar to locate the axle laterally. It connects from a bracket on the frame to the axle housing. New bushings are available if your car has one.

Practical Tips for Using This Suspension Part Map

When ordering parts for your 1964 Impala, always verify your car’s original equipment. Some early‑year parts differ from late‑year. Use the part map to count bushings, bolts, and clips you’ll need. Draw a simple sketch of each area before disassembly to avoid mix‑ups.

• Front: Label each control arm, ball joint, and bushing location. Keep the alignment shims organized.
• Rear: Mark the spring position and shackle orientation. Replace all rubber components together.

Most suspension parts are available through classic car specialty retailers. Stick with reputable brands like Moog, AC Delco, or Energy Suspension for bushings. For springs, OEM replacements are fine, or choose aftermarket brands like Hotchkis or Detroit Speed for improved handling.

Final Recommendation

Start by inspecting all bushings, ball joints, and shocks. Use this suspension part map to identify any worn components before they cause further damage. Replace parts in sets (both control arms, both springs, all bushings) to maintain balance. If restoring, consider a complete front end rebuild kit that includes ball joints, bushings, and tie rod ends. For the rear, fresh leaf springs and shocks make a dramatic difference in ride quality. Keep a printed copy of this map in your garage—it’s the most reliable road map for your Impala’s suspension.