RV TowCalc

RV Towing Guides & Safety Resources

Free, independent guides to help you tow safely. No dealer bias, no sponsored content—just clear, data-driven information backed by SAE J2807 standards and manufacturer specifications.

Fundamentals

Towing Capacity Explained

What towing capacity means, how SAE J2807 determines it, the 80% rule, and why tow rating alone is not enough for safe towing.

GVWR vs GCWR: What's the Difference?

Clear explanation of Gross Vehicle Weight Rating and Gross Combined Weight Rating. Learn how they interact and why both matter.

Payload Capacity Explained

Why payload is the #1 towing blind spot. Learn how tongue weight, passengers, and cargo consume payload, and how to stay within limits.

Travel Trailer Cargo Carrying Capacity (CCC) Explained

How much gear can you actually pack? The RVIA CCC formula, real cargo budgets by trailer size, water and propane weight, and how to stay under GVWR.

How to Read Your Truck's Tire and Loading Label

Decode the yellow door jamb sticker on your truck. Learn what GVWR, GAWR, payload capacity, and tire pressure mean and how to use them for safe towing.

Pickup Truck Axle Ratio Explained: Which Is Best for Towing

Axle ratio can change your towing capacity by 4,000+ lbs. Learn what 3.31 vs 3.73 vs 4.10 means, how to find your ratio, and which gear ratio matches your trailer weight.

Travel Trailer Dry Weight vs Loaded Weight: What Dealers Don't Tell You

Dealers quote dry weight, but loaded weight is what matters for safe towing. Learn the real numbers, how to calculate your true travel-ready weight, and why the difference can exceed 2,000 lbs.

GAWR Explained: Gross Axle Weight Rating for RV Towing

What is GAWR and why it matters for RV towing. Learn how Gross Axle Weight Rating works, how tongue weight loads your rear axle, and how to stay within safe axle limits.

Do You Need a CDL to Tow an RV? License Requirements by State

The 26,001 lb GCWR threshold explained, which states require a non-commercial license upgrade, which rigs actually cross the line, and how to verify your own setup.

What Size Travel Trailer Can My Truck Tow? A Right-Sizing Guide

A step-by-step worksheet to size your travel trailer to your truck's real payload and tongue weight. Apply the 80% rule, read the door-jamb label, and never overload.

Safety

Tongue Weight Guide

Optimal tongue weight percentages for travel trailers and fifth wheels. How to measure, adjust, and prevent trailer sway.

Trailer Loading Position Guide

Learn the correct way to load your trailer for safe towing. The 60/40 rule, tongue weight optimization, and cargo distribution techniques.

How to Calculate Tongue Weight for a Travel Trailer

4 proven methods to calculate tongue weight: bathroom scale, CAT scale, tongue weight scale, and quick estimation. Includes safe ranges and common mistakes.

How to Weigh Your RV at a CAT Scale

Step-by-step guide to weighing your RV at a CAT Scale. Learn how to get per-axle weights, calculate actual tongue weight, and verify all ratings.

Trailer Brake Controller Setup: Installation & Adjustment

Complete guide to installing, wiring, and adjusting a trailer brake controller. Proportional vs time-delayed, gain setting procedure, pre-trip testing, and troubleshooting common issues.

Trailer Brake Laws by State: When Are Trailer Brakes Required?

State-by-state trailer brake requirements at a glance. The weight thresholds from 1,000 to 15,000 lbs, electric vs surge brakes, breakaway systems, and how to stay legal across state lines.

What Happens If You Exceed GVWR

Mechanical failures, legal liability, insurance risks, and real-world consequences of overloading your tow vehicle. Includes warning signs and how to fix an overweight setup.

Mountain Towing: Transmission Temp & Gear Selection

How to protect your transmission and select the right gears when towing an RV through mountain grades. Temperature limits, tow/haul mode, and downhill braking strategy.

RV Trailer Sway Control: Causes, Prevention & Anti-Sway Devices

What causes trailer sway, how to prevent it with proper loading and tongue weight, and which anti-sway devices actually work. Includes emergency sway response and device comparison.

Trailer Length vs Wheelbase: The 110/20 Rule for Safe Towing

How long a trailer can your truck safely tow? The 110/20 wheelbase rule, rear overhang ratio, and a trailer length chart by wheelbase to prevent dangerous trailer sway.

Toy Hauler Towing Guide: Garage Weight and Tongue Weight Explained

How garage cargo behind the axles acts like a seesaw and lifts tongue weight, the 10-15% rule, garage floor limits, hidden water and fuel weight, and a safe loading sequence.

How to Back Up a Travel Trailer: Step-by-Step Guide for Beginners

Master trailer backing with our complete beginner's guide. Steering technique, spotter hand signals, jackknifing prevention, and practice drills for RV owners.

5th Wheel Pin Weight: How to Measure It and Stay Within Truck Payload

Pin weight is the #1 hidden failure mode in 5th wheel towing. How to measure pin weight with a CAT scale, the payload math that matters, and how to reduce pin weight if overloaded.

Travel Trailer Tire Safety: Load Range, Cold Pressure & Blowout Prevention

Tire blowouts cause thousands of RV accidents every year. Learn how to choose the right load range, calculate cold pressure, read the DOT date code, and prevent dangerous blowouts.

Towing With a Lifted Truck: How Lift Kits Affect Towing Capacity and Safety

Lift kits change hitch geometry, suspension travel, and axle angles. Learn how much towing capacity you lose, what modifications restore safety, and whether a lifted truck can safely tow your RV.

Travel Trailer Pre-Trip Inspection Checklist: 7-Step Walk-Around

Printable 7-step walk-around inspection covering hitch connection, tires, lights, propane, interior cargo, electrical, and final pre-departure walk. Includes seasonal checklists.

Spring Towing Pre-Departure Checklist

Complete spring checklist for your tow vehicle and trailer. Ensure safety and reliability before hitting the road this RV season.

Winter RV Storage Guide

Complete winterization checklist for your RV and trailer. Protect your investment during the cold winter months.

How Fast Can You Tow a Travel Trailer? Towing Speed Limits by State

Most states follow the posted limit, but your ST trailer tires cap out at 65 mph. State reduced-limit laws, tire speed ratings, stopping distance math, and the safe towing speed.

Equipment

Weight Distribution Hitch Setup Guide

Complete step-by-step WDH installation and adjustment guide. Includes measurement worksheet, common mistakes, and model comparisons.

Diesel vs Gas Truck for Towing RV: Which Is Better?

Head-to-head comparison of diesel and gas trucks for RV towing. Torque curves, fuel economy, maintenance costs, payload trade-offs, and which engine wins for your trailer weight.

RV Towing Mirrors: Legal Requirements, Types & Best Options

Towing mirrors are required by law in most states. Learn which mirror types work best, state-by-state legal requirements, installation, adjustment, and top product picks.

How to Choose the Right Hitch Ball for Towing

Complete hitch ball selection guide: 1-7/8", 2", and 2-5/16" ball diameters, weight ratings by trailer class, drop vs rise calculation, materials, and pre-tow inspection steps.

Trailer Hitch Classes Explained (Class I–V)

Class I through V hitch ratings, receiver tube sizes, weight distribution limits, and the weakest-link rule that decides which receiver your RV actually needs.

Tow/Haul Mode Explained: What It Does, When to Use It

What tow/haul mode actually changes in your transmission, when to engage it (and when not to), how it reduces transmission heat, and how it stacks with manual mode and L gear on long grades.

5th Wheel Hitch Height and Bed Clearance: The Setup Guide

How to measure kingpin and bed rail height, calculate the correct 5th wheel hitch height, hold the 5.5 to 6 inch bed rail clearance rule, and when to adjust the pin box instead.

Buying Guides

Best Half-Ton Trucks for Towing 8,000 lbs

Head-to-head comparison of Ford F-150, RAM 1500, Silverado 1500, Sierra 1500, Tundra, and Titan for safely towing an 8,000 lb travel trailer.

5th Wheel vs Travel Trailer: Towing Compared

Side-by-side comparison of 5th wheel and travel trailer towing: hitch types, stability, payload math, fuel economy, and which truck you actually need.

Electric Trucks for Towing RVs

Real-world range, payload, and charging logistics for Rivian, Tesla Cybertruck, F-150 Lightning, and Silverado EV when towing travel trailers.

RAM 1500 vs Ford F-150 Towing Comparison

Head-to-head towing comparison: max tow rating, payload, engine torque, suspension, and which truck is safer for your RV. Independent, data-driven.

Can My SUV Tow a Small Travel Trailer?

Find out if your SUV can safely tow a small travel trailer. Includes SUV tow ratings by class, payload reality checks, and top recommendations.

Towing With a Midsize Truck: Colorado, Ranger, Tacoma RV Towing Guide

Can a midsize truck tow a travel trailer? Complete towing guide for Chevy Colorado, Ford Ranger, Toyota Tacoma, Nissan Frontier, and Jeep Gladiator. Real specs, payload limits, and safe trailer matches.

3/4 Ton Truck Towing Capacity: F-250 vs RAM 2500 vs Silverado 2500 Compared

Compare 3/4 ton truck towing capacity for Ford F-250, RAM 2500, and Chevy Silverado 2500HD. Real gas vs diesel tow ratings, payload penalties, and which HD truck fits your fifth wheel.

Can a Half-Ton Truck Tow a Fifth Wheel? The Payload Math

Why the advertised 13,000 lb fifth wheel tow rating is the wrong number. How to work out your real pin weight budget, the payload worksheet, and which lightweight fifth wheels actually fit a half-ton.

Gooseneck vs 5th Wheel Hitch: Which Is Better for Towing?

Head-to-head comparison of gooseneck and 5th wheel hitches. Tow ratings, bed space, install cost, short-bed compatibility, and which setup fits your truck and trailer.

Matchups

Maintenance

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