Every published number is tied to a named source document and a recorded verification date. Conflicting configurations are kept separate instead of being averaged or guessed.

Read the verification methodology

Why one model has several correct answers

Ask what a truck can tow and the honest answer starts with a question: which one? A single model year routinely spans several engines, two or three axle ratios, two drivetrains, multiple cab and bed combinations, and an optional tow package. Each combination carries its own rating, and the spread between the lowest and the highest is often large enough to matter legally, not just academically.

The same is true across every specification we publish. Oil capacity belongs to the engine, not the badge. Wheel torque can differ between alloy and steel wheels on the same vehicle. Tire size varies by trim and wheel option, and a winter package may approve a narrower size on purpose. Sites that reduce all of this to one headline number per model are not simplifying — they are guessing on your behalf.

SpecAxle keeps configurations separate. Where a manufacturer publishes different values for different builds, you see the qualifier attached to the value instead of an average that applies to nobody.

How to use these pages

Start from year, make and model in the finder above, then narrow to the configuration that matches the vehicle in front of you.
Check the qualifier, not just the number. A rating that depends on a tow package or a 3.55 axle is not your rating unless your vehicle has them.
Cross-check against the vehicle itself. The certification label on the driver door jamb and the owner manual for your market are the final authority. Our figures are a fast reference and a second opinion, not a replacement for either.
Read the topic guides. Each library page — towing, oil capacity, torque, tire sizes — explains what the figure means, how the related ratings interact, and the mistakes that cause real damage.

What we cover today

We are building this deliberately: accuracy first, breadth second. Coverage currently concentrates on high-volume North American models, and we expand a make only once we hold source documentation for its configurations rather than filling gaps with estimates. If a vehicle you need is missing, that is a coverage gap we have not closed yet, not a value we decided to omit.

Every published figure carries a named source document and a recorded verification date, and corrections from readers are reviewed and applied. The full process is set out in our methodology, and the standards we hold ourselves to are in our editorial policy.

Common questions

Is SpecAxle affiliated with any manufacturer? No. We are independent, we publish figures sourced from manufacturer documentation, and we have no commercial relationship that influences what a page says.

Can I rely on a figure here for a legal or safety decision? Use it to orient yourself, then confirm against your vehicle documentation before towing, servicing or buying tires. Where our figure and your documentation disagree, your documentation is correct and we want the report.

Found an error? Send the page and what looks wrong through our contact page. Corrections are the fastest way this reference gets better, and we treat them as such.