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

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

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What You'll Be Able To Do After Reading

This isn't theory. Five things you'll walk away able to do yourself - no shop visit required.

Spot the 4 early wear signals before they turn into a $6,800 repair.

Run one maintenance schedule that works for any make, 1990-2025.

Tow and haul without silently grinding down your drivetrain.

Read your tires and suspension the way a shop tech does.

Build a realistic path to 300,000 miles.

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 Hidden Wear Points Quietly Killing Your Truck

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

The 4 Hidden Wear Points That Fail First
Where heavy load turns into early wear.
The Simple Schedule That Kills the Guesswork
A repeatable schedule instead of guesswork.
What Towing Really Does To Your Drivetrain
What trailer load does to your drivetrain.
Why Loaded Weight Wrecks Your Handling
How loaded weight changes handling and wear.
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The Tire Wear Pattern That Warns You First
Wear patterns that warn you before failure.
The Noise, Heat & Vibration Owners Miss
The noise, heat, and vibration owners miss.
The Sensors That Quietly Strand Trucks
Sensors, modules, and wiring that keep trucks talking.
How High-Mile Owners Reach 300,000 On Purpose
How long-haul owners make durability intentional.

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

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Frequently Asked Questions

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