How wide is a 57 Chevy truck rear end?
The rear axle width (hub-to-hub track) for 1957 Chevrolet pickups typically sits around 58–60 inches for most 1/2-ton models, with 3/4-ton and 1-ton configurations generally falling in a broader range closer to 60–66 inches depending on the axle and bed type.
Understanding rear-end width and what to measure
In classic truck terms, “rear end width” usually refers to the track width—the distance between the centers of the two wheel hubs. This is the metric most important for wheel and axle swaps, brake clearance, and fitment inside the fenders. Factory figures vary by payload rating (1/2-ton, 3/4-ton, 1-ton) and by whether the truck is short- or long-bed, so there isn’t a single universal number for all 1957 Chevy trucks.
Typical ranges for stock 1957 Chevrolet Task Force pickups
- 1/2-ton models (e.g., 3100): roughly 58–60 inches hub-to-hub.
- 3/4-ton models (e.g., 3600): roughly 60–64 inches hub-to-hub.
- 1-ton models (e.g., 3800): roughly 62–66 inches hub-to-hub.
Because there were multiple configurations and axles used across the 1955–1959 Task Force era, individual trucks may vary. If you’re planning a swap or restoration, measure your own axle to confirm exact width rather than relying solely on stock ranges.
How to measure your rear end
To confirm the precise width on your specific truck, follow these steps and record the measurement for reference when buying parts or planning modifications.
- Safely lift and support the vehicle so the rear wheels are off the ground and the tires are removed.
- Measure the hub-to-hub distance by placing a tape measure across the centers of the two wheel hubs, ideally through the center of the brake drums or backing plate mounting surfaces.
- Record the measurement in inches (or convert to millimeters if needed). If you cannot access the exact hub centers, measure from the inner faces of the brake backing plates and subtract the known brake drum thickness to estimate hub-to-hub.
- Note the axle type by inspecting the differential housing and any stamping or tags on the axle housing. Common Task Force rear axles include 1/2-ton, 3/4-ton, and 1-ton configurations.
- Measure spring perches and any offsetting hardware if you plan to swap axles or mount different springs, as these can affect overall fitment even if hub-to-hub width is similar.
- Compare your measured width to factory specifications for your exact model and payload rating, and consult shop manuals or OEM documentation for confirmation.
Knowing your exact measurement helps when sourcing replacement rear ends, planning swaps, or ensuring proper alignment with the wheel and brake systems during restoration or modification.
Notes for swaps and restoration
- Track width is the key measurement for fitment; don’t rely on overall axle length alone, as spring perches and mounting points influence clearance.
- Wheel bolt pattern, brake setup, and drum size can affect compatibility even if the hub-to-hub width matches.
- Longer or wider rear ends may require modifications to spring mounts, shock mounting, or frame clearance.
- If you’re swapping between payload ratings (e.g., from 1/2-ton to 3/4-ton), verify not only width but also the mounting geometry and driveshaft alignment.
In practice, many enthusiasts aiming to maintain an authentic look or to perform modern upgrades will confirm width through direct measurement and compare it against a variety of donor axles before purchasing replacement parts.
Summary
For most 1957 Chev y pickups, expect a hub-to-hub rear-end width near 58–60 inches for 1/2-ton models and a broader 60–66 inch range for 3/4- and 1-ton configurations. Exact figures vary by model, bed length, and axle code, so the most reliable approach is to measure your specific axle. This ensures accurate part selection and proper fitment for restoration or performance upgrades.
How wide is the rear axle on a 1954 Chevy truck?
Standard width is 60″ Axle Flange to Axle Flange but custom widths are available.
How wide is a 1957 Chevy rear end?
Products specifications
| Vehicle Fitment | 55-57 Chevy Tri-5 (120, 210, Bel Air and Delray ) Call for Station Wagons, Nomad and Sedan Delivery |
|---|---|
| Wheel Bolt Pattern | 5 on 4 3/4" with 7/16" studs installed |
| Brake Space | 2.5 inches (axle standoff) |
| Width | 60 inches (between wheel mounting surfaces) |
How wide is a 57 Chevy?
Torque: 210 ft-lb, 285 Nm. Length: 200 in. Width: 73.9 in. Height: 58.3 in.
How to measure rear end width on a Chevy?
Place. All right so we're going to do that on both sides. And then the whole goal is Now that we can measure. From one side to the other we're going to use a tape measure.
