Editorial Policy

What this site publishes, where every number comes from, what happens when something here turns out to be wrong, and the errors already corrected.

Last reviewed:

Contents9 sections

Who writes this

TowCapacityCalc is written and edited by Imtinan Farooq, Editor, TowCapacityCalc. One named person is accountable for every page on this site. There is no anonymous “editorial team” standing in for a byline, and no invented expert names, fabricated credentials or borrowed certifications.

That accountability is the reason the corrections log further down this page exists. If something here is wrong, there is one person to hold to it.

Where the numbers come from

This site reconciles published engineering and legal figures — its job is to show which limit actually binds, not to invent the limits. So the provenance rules are strict.

  • Ratings come from the manufacturer. Tow ratings, payload, GVWR, GCWR and axle ratings are taken from published towing guides and owner’s manuals, and the configuration they describe is stated — because a headline tow rating almost always belongs to one specific cab, bed, axle and engine.
  • Legal claims cite an official publisher. State legislature or state code, DOT, DMV, or department of public safety. Aggregators such as Justia, FindLaw and Casetext, law-firm marketing pages, RV forums and towing blogs are not acceptable sources for a legal claim: a summary of a summary is how a wrong statute number spreads.
  • The citation travels with the claim. Each state equipment rule carries its own statute citation and official link on the page where it appears, rather than sitting in a source list at the bottom. Any single sentence can be checked against the exact section it came from.

That standard is enforced automatically rather than by good intentions: a source check runs before every deployment and fails the build on a legal claim whose citation is not an official publisher. The state equipment rules currently stand at 138 cited rules across 49 states, each with its statute and official link, last read end to end on 2026-08-21.

When the answer is not known

No entry is better than a guessed one. Where an official source could not be found for a specific state requirement, the page says so rather than filling the gap with a plausible-sounding figure or a number borrowed from a neighbouring state.

12 of the 150 possible state-level entries are deliberately left unrecorded for that reason, and they read as needing verification because that is the true state of the record. A blank is honest; an invented citation is a trust failure.

The same rule governs arithmetic. Curb weight is never derived by subtracting a published maximum payload from a published GVWR: those two figures describe different configurations of the vehicle, and the result is nonsense. Where a figure cannot be derived soundly, the page asks for the number off your own door jamb instead.

What every towing page must do

Towing advice affects safety, so each guide and calculator is expected to leave you better able to check your own vehicle — not more willing to trust a single advertised tow rating.

  • Name which rating is in play: tow rating, payload, GVWR, GAWR, GCWR or hitch load.
  • State that the door-jamb label and owner’s manual override any example here. Those are the ratings that legally apply.
  • Use loaded trailer weight — never dry weight — for tongue weight, pin weight and GCWR.
  • Keep educational planning ranges visibly separate from manufacturer limits and legal requirements.
  • Send you to a scale when the estimated margin is small.
  • Say when a technique is common practice rather than manufacturer-published. Where a widely repeated method appears in no manual, the page says so instead of passing it on with borrowed authority.

Corrections

Specifications and statutes change, and research sometimes overturns something already published here. When that happens the page is corrected and the correction is recorded below — including what the page used to say, so the record is auditable rather than quietly rewritten.

This log carries substantive corrections only: cases where a fact published here was wrong or unsafe, and a reader acting on it would have been misled. Copy edits, redesigns and new content are not listed, because a log padded with those stops meaning anything.

2 corrections

  1. 80/20 towing rule calculator (worked example)

    Was
    A 2024 Ford F-150 with the 3.5L EcoBoost has a maximum towing capacity of 14,000 lbs; at 80% the working limit is 11,200 lbs.
    Now
    Ford rates the 2024 F-150 3.5L EcoBoost at a maximum of 13,500 lb (14,000 lb was the 2021–2023 figure), so the 80% working limit is 10,800 lb. The example now matches the site's truck database.
    Settled by
    Ford, 2024 F-150 towing guide (13,500 lb maximum, 3.5L V6 with Tow/Haul and Max Tow Axle)

  2. Alabama towing laws page

    Was
    Breakaway system: not required — "Title 32 contains no breakaway provision … no trailer or breakaway duty is imposed" (Ala. Code 32-5-212).
    Now
    Required. Title 32 is silent, but Alabama's brake-equipment rule requires automatic breakaway brakes on every trailer over 3,000 lb gross weight built after January 1, 1972, and on any trailer with air or vacuum brakes. The state page and the 50-state table now agree.
    Settled by
    Alabama Department of Public Safety, Ala. Admin. Code r. 760-X-1-.09(d)

14 corrections

  1. Ram 1500 truck pages and the homepage truck picker

    Was
    The 2024 Ram 1500 HEMI's maximum payload was given as 2,300 lb, and an EcoDiesel row (2020–2024) listed a 12,560 lb tow rating with a 15,600 lb GCWR.
    Now
    2,300 lb is the Pentastar V6's figure; Ram lists the HEMI at 1,860 lb. The EcoDiesel row paired figures that cannot come from one truck and could not be sourced, so it was removed.
    Settled by
    Ram, 2024 Ram 1500 Payload & Towing sheet

  2. Toyota Tundra and 2024 Tacoma truck pages, the towing capacity chart and the homepage truck picker

    Was
    GCWR of 17,200 lb (Tundra) and 11,100 / 10,500 lb (2024 Tacoma gas / hybrid); Tundra hybrid maximum tow 11,175 lb.
    Now
    None of those GCWR figures appears in Toyota's published brochures, so they were removed; the pages now say the figure is not published in the sources checked and point to the owner's manual. The Tundra hybrid maximum is 11,450 lb (Limited CrewMax 4x2); 11,175 lb is the TRD Pro.
    Settled by
    Toyota, 2022–2024 Tundra and 2024 Tacoma eBrochures (specifications pages)

  3. Can a Chevy Silverado 1500 tow a 9,000 lb trailer?

    Was
    The 5.3L's 11,300 lb tow rating was paired with a 15,000 lb GCWR to argue the margin.
    Now
    That is not a real combination. Chevrolet lists the 5.3L at 9,300 lb with a 15,000 lb GCWR, and 11,000 lb at 16,800 lb GCWR with the Max Trailering Package. The table is rebuilt from nine published rows.
    Settled by
    Chevrolet, 2024 Silverado 1500 trailering chart

  4. Can a Toyota Tacoma tow a 5,000 lb camper?

    Was
    Every Tacoma configuration is rated 6,000–6,800 lb.
    Now
    The 2024 SR is rated 3,500 lb, and Toyota caps tongue weight at 640 lb on the Double Cab, so the site's usual 13% planning figure for a 5,000 lb camper (650 lb) is over that limit.
    Settled by
    Toyota, 2024 Tacoma brochure

  5. Weight distribution hitch guides; CAT scale and tongue-weight measuring advice

    Was
    Restore the front axle fully when adjusting a weight distribution hitch; tongue weight can be measured with the spring bars tensioned.
    Now
    Ford specifies restoring 50% of the front-axle load. Tensioned bars move load off the tongue, so the bars must be released before weighing tongue weight or the reading comes out low.
    Settled by
    Ford Motor Company, RV & Trailer Towing Guide (weight distribution hitch adjustment)

  6. Can a Subaru Outback tow an Airstream?

    Was
    All Outback configurations share a 3,500 lb tow rating, and a small Airstream was the recommended pairing.
    Now
    2025 Outbacks with the 2.5L engine are rated 2,700 lb; only the 2.4L turbo trims are 3,500 lb. The tongue-weight limits (270 lb and 350 lb) are now stated, and the verdict changed to 'not comfortably' because the tongue limit binds first.
    Settled by
    Subaru of America, 2025 Outback specifications

  7. Can a Hyundai Tucson tow a pop-up camper?

    Was
    FWD Tucsons are rated 1,653 lb, AWD 2,000 lb, and hybrid/plug-in models 1,653 lb.
    Now
    Every 2025 Tucson (gas, hybrid and plug-in) is rated 2,000 lb with trailer brakes and 1,650 lb without. The answer now depends on whether the camper has brakes.
    Settled by
    Hyundai Motor America, 2025 Tucson specifications

  8. Can a Ford Maverick tow a travel trailer?

    Was
    The Maverick Hybrid is exclusively FWD, no Maverick has a built-in brake controller, and the worked example used a 9,800 lb GCWR.
    Now
    For 2025 the hybrid is available with AWD and the 4K Tow Package (4,000 lb), which includes a trailer brake controller; Ford lists GCWR of 8,130 / 8,315 lb. Ford's 40 sq ft frontal-area limit rules out most travel trailers.
    Settled by
    Ford Motor Company, 2025 Maverick towing specifications

  9. Can half-ton trucks tow fifth wheels?

    Was
    The F-150 is marketed with fifth-wheel capacity up to 14,000 lb; a truck camper and two travel trailers were listed as fifth wheels; per-trim door-sticker payloads were quoted.
    Now
    Ford's 2024 towing guide lists fifth-wheel/gooseneck towing up to 11,600 lb. Non-fifth-wheel examples were removed, and payload is taken from the truck's own door placard because Ford and GM do not publish it by trim.
    Settled by
    Ford Motor Company, 2024 RV & Trailer Towing Guide

  10. Do I need trailer brakes? (state threshold table)

    Was
    New York requires trailer brakes at 1,000 lb, Ohio at 2,000 lb, and Oregon at 3,000 lb; 'about 38 states' require a breakaway system.
    Now
    The table is rebuilt from the site's statute-cited state data with a basis column (New York: 1,000 lb unladen or 3,000 lb gross). The breakaway count now reads '32 of the 44 states where the rule is sourced'.
    Settled by
    The state vehicle codes cited on each /guides/towing-laws-by-state page

  11. How to calculate tongue weight, and the bathroom-scale widget on the guide pages

    Was
    Read the scale, subtract the tare weight of the wood beam, and multiply by the lever ratio. The widget added half the beam's weight instead of subtracting it.
    Now
    Tongue weight = (scale reading − half the beam's weight) × (A + B) ÷ A, from the moments about the block. At the widget's defaults the old version overstated tongue weight by 48 lb.
    Settled by
    Statics (moment balance); the method is shown in a new diagram on the page

  12. How to read a towing sticker

    Was
    GVWR and GAWR are printed on the yellow tire and loading placard.
    Now
    They are on the separate vehicle certification label (49 CFR 567.4). The tire placard carries the occupant-and-cargo (payload) figure and tire pressures (FMVSS 110).
    Settled by
    NHTSA, 49 CFR 567.4 and 49 CFR 571.110

  13. Trailer brake controller guide; towing hitch guide

    Was
    On a 7-way connector the blue, white, black and yellow wires are consistent, and readers can work by colour against a diagram.
    Now
    Identify each pin by position and test it. Wire colours are not consistent between manufacturers (black is battery charge for one and brake output for another), as the 2026-08-26 correction already said.
    Settled by
    Trailer and vehicle manufacturers' wiring documentation

  14. What is trailer sway? and Can towing damage your transmission? (interactive tools)

    Was
    A 'sway risk score' calculated from tongue weight, speed and wind, and transmission fluid life in miles (e.g. 50,000 miles at 220°F).
    Now
    Neither has a published formula; both figures were invented. The sway tool is now a tongue-weight percentage check against the 10–15% guideline, and the transmission tool shows temperature zones and points to the owner's manual severe-service schedule.
    Settled by
    Vehicle owner's manuals (severe-service schedules); no manufacturer publishes a sway score or fluid-life mileage curve

1 correction

  1. 18 guides, the sections headed “Real-World Case Study”

    Was
    Worked examples presented as real readers' experiences, with names (“Kevin G.”, “Mark and Sarah K.”, “Chris and Natalie B.” and others), trips, quotes, repair bills and stopping distances. None of those people or events were real; this site has no reader case studies.
    Now
    Each is relabelled “Worked example (hypothetical)”, with no names, quotes or invented incidents, and its arithmetic rechecked. Two of them also told readers to use the brake controller's manual lever to stop sway, contradicting the 2026-08-26 correction below; both now defer to the vehicle's owner's manual. Two others (a horse trailer and a boat) no longer suggest lowering tongue weight to fit a limit.
    Settled by
    This site's editorial policy, which forbids presenting invented people or experience as real

3 corrections

  1. Trailer sway advice, four pages

    Was
    That the brake controller's manual lever is the correct tool for pulling a swaying trailer straight.
    Now
    The manual lever is for setting gain during trailer setup, not for correcting sway. The advice traced to a real source — Redarc describes its lever as being for exactly that use — but a vehicle manufacturer names the practice and warns against it, and the vehicle manufacturer governs. One stale mention survived in an image caption and was corrected the same day.
    Settled by
    Ford F-150 owner's manual: "Misuse, such as application during trailer sway, could cause instability of trailer or tow vehicle."

  2. Trailer hitch pillar, 7-way wiring

    Was
    A 7-way RV blade colour table, telling readers to "work by colour".
    Now
    Colour is the unreliable part. Three manufacturer sources give three different colour maps for the same connector and only two entries survive all three — white for ground, blue for brakes. Two collisions are dangerous: black is battery charge to one maker and brake output to another; red is 12 V power to one and stop-and-left-turn to another. A single current manual even contradicts itself between its 4-way and 7-way pages. The guide now tells readers to identify pins by function and test, not by colour.
    Settled by
    Jayco, Big Tex and Curt wiring documentation, compared side by side

  3. Best SUVs for Towing

    Was
    Tow ratings and dimensions that were substantially wrong — and every error ran the same direction, flattering the vehicle.
    Now
    Corrected against manufacturer towing guides: Suburban/Yukon XL 8,300 → 8,200 lb; Expedition MAX 9,300 → 9,000 lb (9,300 is the short-wheelbase car); Grand Cherokee 7,200 → 6,200 lb (the 5.7L HEMI is no longer offered); Explorer 5,600 → 5,000 lb (5,600 was the 2024 3.0L EcoBoost); Sequoia understated at 9,000 → up to 9,520 lb. Three wheelbase figures were a full generation out of date.
    Settled by
    GM, Ford, Jeep and Toyota published towing guides

1 correction

  1. State law citations, six pages

    Was
    Six state pages cited Justia or FindLaw as their legal source — a summary of a statute standing in for the statute.
    Now
    Three were replaced with official sources: Idaho and Wyoming already carried the legislature's own page alongside the aggregator, so the aggregator was redundant; Tennessee, which does not publish its code in full text on a .gov host, now cites the Tennessee Highway Patrol's own trailer requirements page. Arkansas, Mississippi and New Mexico still stand, because for those three the aggregator is the only statute source on the record — recorded openly rather than quietly dropped.
    Settled by
    State legislature and department of public safety publications

1 correction

  1. Towing calculator, GCWR check

    Was
    The combined-weight calculation counted tongue weight twice, making the GCWR margin look smaller than it was.
    Now
    Tongue weight is counted once, where it belongs — in the tow vehicle's loaded weight.
    Settled by
    Internal arithmetic review

How updates happen

Pages are revisited when calculator behaviour changes, when a manufacturer publishes new figures, when a statute is amended, when a reader reports unclear wording, or when search data shows a page is not answering the question behind the query.

Trailer brakes, state towing laws, payload overload and fifth-wheel pin weight get stricter review than the rest, because a wrong shortcut in those four creates an unsafe setup rather than an inconvenient one.

Model-year data is re-checked against the manufacturer’s current towing guide rather than carried forward, since ratings move between years and engines are discontinued mid-generation.

What is not published here

No invented vehicle limits. No manufacturer tables copied without the configuration they describe. No legal advice offered as a substitute for an official state source. No claim that a hitch, airbag, helper spring or any other device raises a manufacturer rating — those change how a vehicle rides, not what it is rated to carry.

Where a setup depends on trim, axle ratio, cab, drivetrain, package, wheelbase, tyre or hitch class, the page names which rating still needs verifying against the vehicle itself.

Images. The scene images and guide covers on this site are AI-generated illustrations, labelled “Illustration” on the page. They set the scene and nothing more: none is offered as a picture of how a piece of equipment works, how a procedure is done or what a particular vehicle looks like. Every diagram that explains something is drawn for this site from the cited sources.

What the calculators do not do

The tools apply standard towing arithmetic to the values you enter. There is no proprietary model and no hidden adjustment. They do not read ratings from a VIN, registration or plate. They do not measure anything — a tongue weight from a percentage is an estimate, and a scale ticket is a measurement. They do not model heat, grade, altitude, wind, tyre condition or brake condition.

Results are estimates for planning. Door-jamb labels, owner’s manuals, hitch labels, tyre ratings and scale weights are the figures that govern before you tow.

Report an error

If you find an outdated rating, a broken or non-official source, or a calculator assumption that does not hold, please report it with the vehicle configuration, the source URL and the page that needs review. Corrections affecting safety are prioritised over everything else, and substantive ones are added to the log above.

Report a correctionReview source standardsSee calculation methodology