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FREE — 190 PAGES — EVERY MAJOR MAKE

One skipped fluid change. $6,800.

190 pages. Written by an ASE Master Tech. Prevents the repairs that turn $180 into $6,800.

Prevent shop bills Every major make Instant email delivery
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Fast facts before you download

What You Get In One Scan

Built for owners who want the maintenance facts up front, not buried in a sales page.

190 Pages

Written by an ASE Master Tech around the failures that cost owners the most.

6 Makes Covered

Ford, Ram, Chevy, GMC, Toyota, and Nissan owners are all inside the same playbook.

1990-2025 Gas + Diesel

Half-ton to one-ton trucks, with towing, load, wear, and system-specific guidance.

$60 Tool Cost

Most jobs use basic hand tools you already own — or about $60 in new ones.

Danny's Tuesday

Danny ran a landscaping crew out of a 2012 F-250. He skipped the transmission service because the truck still felt fine.

Then the transmission gave out on I-40. The rebuild was $6,800, two contracts stalled, and the weekend he wanted back was gone.

Blake wrote the manual so the small stuff gets handled before the expensive stuff starts.

Most catastrophic truck bills start as ignored maintenance reminders.
Heavy-duty Ford F-250 owner beside his work-ready truck

Why Blake "Diesel Doc" Harrington Wrote It

Blake "Diesel Doc" Harrington is an ASE Master Technician who spent 20+ years maintaining 150+ fleet vehicles.

He wrote this manual because he kept watching owner after owner pay for failures that routine maintenance would have prevented.

The expensive failures are rarely surprising inside the shop.
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The Same People Who Buy Protection Trust Us With Advice

Real BumperOnly customers, real trucks, real reviews — these owners trusted us with the truck they rely on every week.

Eric Baker beside his Ram truck
Ram owner

Great bumper. Very robust. Fit was perfect. Shipping was ridiculously quick. Exactly what I was looking for.

Ford F-250 owner

BumperOnly was very easy to deal with. My bumper showed up within a week, packaged and protected the right way.

Bumper + winch combo customer

I ordered the bumper winch combo and had it in 3 days. Easy to install and the whole order was handled professionally.

Trusted by 20,000+ BumperOnly orders

These are the trucks we keep on the road. Want the manual?

Same 190 pages, same instant delivery. Just here in case you scrolled past.

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What 190 Pages Cover

8 chapters. 190 pages. Every major make, 1990-2025. 90% of tasks need ~$60 in basic hand tools.

How your truck wears out
Where heavy load turns into early wear.
The maintenance system
A repeatable schedule instead of guesswork.
Towing done right
What trailer load does to your drivetrain.
Suspension under load
How loaded weight changes handling and wear.
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Tires as structural parts
Wear patterns that warn you before failure.
Drivetrain preservation
The noise, heat, and vibration owners miss.
Electrical and modern systems
Sensors, modules, and wiring that keep trucks talking.
The 300,000-mile strategy
How long-haul owners make durability intentional.

Danny did not need more opinions. He needed a system. Each chapter closes that gap.

Trusted by 20,000+ BumperOnly orders

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Frequently Asked Questions

Ford, Ram, Chevy, GMC, Toyota, and Nissan trucks from 1990 through 2025. Gas and diesel.