WORKSHEET IDHM / BUY-01

This worksheet organizes evidence; it is not permission to tow. The exact vehicle, trailer, hitch, tire, and equipment instructions and applicable law remain controlling.

Identify both units

Exact vehicle and trailer

Tow vehicle year / make / modelEngine / drivetrainCab / bed / wheelbaseAxle ratio / axle codeFactory towing package or required equipmentTrailer manufacturer / model / yearTrailer type (conventional bumper-pull only)

Copy, do not estimate

Vehicle and receiver ratings

Door-label payload (lb)GVWR (lb)Rear GAWR (lb)GCWR (lb)Exact manufacturer trailer rating (lb)Manufacturer tongue limit (lb)Receiver WC trailer / tongue (lb)Receiver WD trailer / tongue (lb), if allowed

Use loaded condition

Trailer and trip demands

Trailer GVWR (lb)Published dry / unloaded weight (lb)Trip-ready loaded trailer weight (lb)Measured or planned tongue weight (lb)People and pets in vehicle (lb)Cargo and accessories in vehicle (lb)Hitch / WDH hardware (lb)Measured loaded rear axle (lb)

Water, propane, batteries, dealer options, food, tools, cargo, and permanently added equipment can move the setup away from brochure weight.

Build the evidence packet

Source checklist

01Photograph the tow vehicle's Tire and Loading Information label.02Photograph the certification label with GVWR and front/rear GAWR.03Save the exact model-year owner manual and towing-guide table or official VIN result.04Photograph the installed receiver label and identify WC or WD mode.05Photograph the trailer certification and cargo-capacity labels.06Record a trip-ready multi-platform scale ticket when the combination is available.

Do not hide the hard parts

Separate checks outside simple weight math

01Exact vehicle configuration and required tow equipment02Trailer brakes, controller, wiring, breakaway system, and local requirements03Tire and wheel ratings, condition, inflation, and speed limits04Receiver, ball mount, hitch ball, coupler, and weight-distribution instructions05Frontal-area, grade, speed, cooling, sway-control, and manufacturer restrictions06Installation, maintenance, cargo securement, clearance, and operating condition

Check a box only after reviewing the exact instructions or condition—not because another number has margin.

Current evidence state

What happens next?

Ready to enter verified ratings into the margin calculator.Incomplete—resolve the missing rating, label, equipment rule, or measurement.Revise the vehicle, trailer, equipment, or loading plan, then recheck.

Notes / unresolved questions

Primary references

Why this worksheet asks for these fields

Compare entered margins