A permanent reference library for the work thatnever quite ends.
Structured, multi-hour courses on diesel repair, LS engine swaps, wiring diagnostics, and suspension & alignment — built by working technicians, scored by module quizzes, shipped with the diagrams that stay on your bench for the life of the truck.
- Tracks
- LS · Diesel · Electrical · Suspension
- Total runtime
- 53+ hours of video
- Diagrams included
- 120+ printable
- Author
- Working shop techs
- LS02 · Accessory-drive layout24mDiagram
- LS07 · PCM selection & tuning52mHands-on
- DSL12 · Lift-pump data reading31mDrill
- ELE04 · Splice-by-splice isolation49mDrill
Hello, weekend builder. Built for the garage, not the lecture hall — pause a module mid-repair, resume on the bench tomorrow.
Why it's different
Deeper than a YouTube tutorial. Wider than a Penn Foster track.
Torquebench sits in the gap the rest of the market leaves open. Free content gives you a single repair; accredited programs give you a 51-week commitment and a transcript. Torquebench is a permanent library covering LS swaps, diesel repair, electrical diagnostics, and suspension & alignment under one roof — built once, sold repeatedly, owned for the life of your hobby or career.
- Against free contentStructured depth, scored module quizzes, working-technician authors — not ChrisFix at 12 minutes a piece.
- Against accredited programsOne library, four disciplines, no transcript office. Re-watch the same module in 2031 when the harness faults again.
- Against niche creatorsStop hunting across Facebook groups and TikTok creators — own every reference course you'll ever need.
The curriculum
Four tracks. One library. Built once.
Every track is a complete program on its own. Together, they form a single permanent reference set covering the work that crosses bays, shops, and decades.
Track 01 · Engine
Plan, spec, and finish an LS swap end-to-end — engine choice, accessory drives, fuel system, PCM tuning, and the install decisions that bite a first-time builder.
Track 02 · Drivetrain
Read injection-system faults, walk through common failure modes on Duramax / Power Stroke / Cummins platforms, and learn the diagnostic sequence working techs actually use.
Track 03 · Electrical
Trace a fault from symptom to splice. Read factory wiring diagrams fluently, divide a harness into testable zones, and stop guessing at which circuit failed.
Track 04 · Suspension
Ride-height, alignment geometry, and the wear-pattern diagnostics working techs use to dial in a chassis — read the tire, set the corner, and stop chasing the same drift wheel after wheel.
Inside the library
A sample of what lands on your bench.
84 modules across four tracks. Each module is a short, focused repair or diagnostic drill — short enough to finish in a single evening, deep enough to actually change how you work the next morning.
| Track | Module | Runtime | Method |
|---|---|---|---|
| LS | Choosing the right LS for your chassis and goals | 38 min | Video |
| LS | Front-accessory drive layout and belt routing | 24 min | Diagramming |
| DSL | Injection-system pressure faults: where to start | 42 min | Diagnostic drill |
| DSL | Reading a Duramax lift-pump failure from data | 31 min | Hands-on |
| ELE | Splice-by-splice fault isolation in a body harness | 49 min | Diagnostic drill |
| ELE | Reading a GM LAN bus schematic without losing it | 36 min | Diagramming |
Authors own shops, work bays, and on-call rotations. Every module is reviewed against a real repair, not a marketing brief.
Printable, pinnable, and ordered in the same sequence the course walks you through. Wire colors are real wire colors.
Modules end with a scored drill where the next move is yours — the way a senior tech quizzes an apprentice at the bench.
From the bench
What working techs say after they finish.
Quotes from builders and technicians who completed TorqueBench courses and put the material to work the same week.
“The PCM selection module alone saved me three weekends of forum-diving. I had the engine running in one shot instead of the usual guessing game.”
“I've been a working diesel tech for eight years. This is the first time I've seen lift-pump diagnosis sequenced the way we actually walk it on the floor. Bought the library pass the same day I finished the first module.”
“The wiring diagnostic drills changed how I approach every electrical job. I stopped guessing at which circuit failed and started dividing the harness the way the module teaches.”
“Finished the LS swap track during lunch breaks over two weeks. The diagrams are still pinned above my bench — and I wasn't expecting the completion certificate to actually matter to my employer, but it did.”
“I run a small alignment shop. The suspension geometry module covers exactly the corner-balance sequence I use, explained better than anything I found in three years of reading forums.”
Questions worth asking
The honest answers before you buy.
We'd rather you ask once now than email later. If something below isn't enough, the team reads everything sent to the address at the bottom of the page.
Lifetime access · working-tech authored · certificate on every track · official email: torquebench@polsia.app
Get the library
Stop hunting across Facebook groups.
One inbox, one library, every reference course you need for the life of the truck or the career. Email the team — they'll send pricing, the current module list, and kit shipping windows for your country.
- LS swaps · Diesel repair · Wiring diagnostics · Suspension & alignment
- Lifetime library · printable diagrams · scored quizzes
- Optional hands-on kits ship worldwide