Towing, Payload & Gearing
Fitment-first advice and calculators on weight-distribution hitches, rear-axle gearing, payload capacity, and towing safety.
Hitch Receiver Class and Size: Do You Need Class III, IV, or a 2.5-Inch Receiver?
What Class III, Class IV, and 2.5-inch receivers mean, why brands rate them differently, and why the label on your hitch, not the class name, sets the limit.
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4-Pin vs 7-Pin Trailer Wiring on a Pickup: Which Plug Do You Actually Need?
What a 4-pin flat vs 7-pin RV blade actually carries; when lights-only is enough; when electric brakes need a real 7-way and controller circuit; adapter vs factory plug.
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Trailer Brake Controller: Do You Need One, and Proportional or Time-Delay?
How trailer brake controllers work, when state laws and OEM manuals mandate them, and whether proportional or time-delay fits your truck and towing setup.
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Payload vs Towing Capacity: Which Number Actually Limits Your Pickup Setup?
Door-sticker payload, brochure tow ratings, GCWR, GAWR, hitch limits, and tongue weight — which boundary binds first before hitching up. The lowest number always wins.
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How Does a Weight Distribution Hitch Work? Physics, Spring Bars, and Front-Axle Restoration Explained
A weight distribution hitch uses spring-bar leverage to shift trailer tongue weight back to your truck's front axle and the trailer's axles. Here's how the physics works, why it matters for steering and braking, and how it differs from sway control.
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Gear Ratios and Regearing Larger Tires: The Truck Owner's Math Guide
Learn when larger pickup tires need regearing, how effective axle ratio changes, what ratio restores stock feel, and when speedometer calibration is enough.
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Best Weight Distribution Hitches With Sway Control: Sizing and Setup Guide
Choose a weight distribution hitch with sway control by loaded tongue weight, truck payload, trailer frame fit, and real sway-control design.
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