HD PMI: Class 7–8 Inspections, Measured and Documented
Three defined tiers for Class 7–8 tractors and trailers: Dry, PMI-A, and PMI-B. Brakes get measured, not eyeballed. The work happens on your yard. Every result lands in TruView.

Heavy-Duty Inspections Nobody Can Argue With
Class 8 inspection quality is wildly inconsistent across vendors. Checkboxes get ticked without a wrench ever coming out. Then a roadside inspection finds what your last PM missed.
Unmeasured brakes
"inspected" means someone looked at them, not that anyone put a ruler on them
No proof
a signed sheet tells you nothing about what the components actually looked like
Scope drift
you ask for an inspection and get an open-ended repair bill
Shop downtime
a tractor sitting in a bay is a tractor not earning
Three Tiers. Fixed Boundaries.
Dry is a tractor-only health check with no fluid service. PMI-A adds a minor service across tractor and trailer. PMI-B is the major service — a superset of PMI-A with more parts and more fluids.
Limited scope by design. You know exactly what you're buying before a tech opens a hood, and anything found outside the tier's boundary is documented for you to act on — never added to the invoice without your say-so.

Dry
Inspection only
- Inspection points
- 75-point
- Coverage
- Tractor only — by design
- Fluid service
- None — health check, not a PM
- Notable extras
- Vendor-ready health-check report
PMI-A
Minor service
- Inspection points
- 71-point
- Coverage
- Tractor and trailer
- Fluid service
- Lube, oil, and filter — minor service
- Notable extras
- Seat belt, mirrors, fuel tank straps and cap
PMI-B
Major service
- Inspection points
- 126-point
- Coverage
- Tractor and trailer
- Fluid service
- Major service — everything in PMI-A, plus more
- Notable extras
- Fuel filter replacement, air-dryer desiccant service, transmission and differential gear oil check — drain and refill if needed
| Scope | DryInspection only | PMI-AMinor service | PMI-BMajor serviceMost comprehensive |
|---|---|---|---|
| Inspection points | 75-point | 71-point | 126-point |
| Coverage | Tractor only — by design | Tractor and trailer | Tractor and trailer |
| Fluid service | None — health check, not a PM | Lube, oil, and filter — minor service | Major service — everything in PMI-A, plus more |
| Notable extras | Vendor-ready health-check report | Seat belt, mirrors, fuel tank straps and cap | Fuel filter replacement, air-dryer desiccant service, transmission and differential gear oil check — drain and refill if needed |
Brakes are measured on every tier — Dry included.
How pricing works: fleet size, location, cadence, and tier mix set the number, so we scope it in a discovery session instead of posting a figure that won't hold.
Get Your Tier Mix ScopedWatch the Fleet Between PMIs
A PMI tells you how a tractor looked on one day. Everything that happens between PMIs, you find out about from a driver — or from a roadside inspector.
So beyond the traditional PMI cycle, we run Dry inspections as a recurring route — weekly, biweekly, or monthly. Same 75-point tractor scope, same measured brakes, on a rhythm you set. That is continuous fleet-health surveillance between your scheduled PMIs, not a cadence picker for PMI-A or PMI-B.
Every route stop is worked on-yard by W-2 heavy-duty technicians, and every result goes into TruView the same day.

Weekly
Highest-visibility option. Good for high-mileage linehaul tractors where a week is enough time for something to change.
Biweekly
The middle setting. Catches wear trends between PMIs without putting a tech on your yard every week.
Monthly
A steady baseline read on tractor health so nothing sits unlooked-at until the next scheduled PMI.
Why Fleets Run HD PMI
An inspection is only worth what you can prove from it.
Measured, Not Eyeballed
Pushrod stroke and lining thickness measured on every axle, on every tier — including Dry. Numbers go in the report, not checkmarks.
Limited Scope by Design
You know exactly what you're buying. Each tier has a defined point count and a defined boundary. Anything outside it gets documented — never quietly added to your invoice.
Documented in TruView
Photo and video evidence on every inspection point that matters. Pull up any tractor's history in seconds.
On Your Yard
Tractors stay where they are. No bay time, no shuttle driver, no day lost to a two-hour inspection.
Custom Dry Routes
Run Dry inspections on a weekly, biweekly, or monthly route between PMIs for continuous fleet health surveillance.
Heavy-Duty W-2 Techs
Class 8 work done by Slick employees trained on heavy-duty systems — not a subcontracted mobile outfit.
How HD PMI Works
Four steps. Defined scope. Nothing bolted on without your say-so.
Pick a Tier
Dry for a health check with no fluid service, PMI-A for a minor service, PMI-B for the full comprehensive service. We'll help you map tiers to your mileage intervals.
Set the Cadence
Schedule PMIs against your intervals, and optionally add custom Dry inspection routes weekly, biweekly, or monthly between them.
Inspect On-Yard
Heavy-duty technicians work the tier checklist on your lot — measured brakes, documented findings, photo and video evidence throughout.
Report & Hand Off
Results land in TruView the same day — measured numbers, photos, and video. Anything outside the tier's scope is documented in full so you can route it to whoever does your heavy-duty repair work. If it looks like something we can take on, we'll say so and price it separately.
Pick a Tier
Dry for a health check with no fluid service, PMI-A for a minor service, PMI-B for the full comprehensive service. We'll help you map tiers to your mileage intervals.
Set the Cadence
Schedule PMIs against your intervals, and optionally add custom Dry inspection routes weekly, biweekly, or monthly between them.
Inspect On-Yard
Heavy-duty technicians work the tier checklist on your lot — measured brakes, documented findings, photo and video evidence throughout.
Report & Hand Off
Results land in TruView the same day — measured numbers, photos, and video. Anything outside the tier's scope is documented in full so you can route it to whoever does your heavy-duty repair work. If it looks like something we can take on, we'll say so and price it separately.
Numbers, Photos, and Video — Not a Signed Sheet
A paper PMI sheet tells you someone was there. It does not tell you what the lining measured or what the airline looked like. TruView does.
Pushrod stroke and lining thickness go in as measurements. Every finding that matters gets photo and video evidence. Pull up any tractor's full inspection history in seconds, and hand a vendor a health-check report you did not have to rebuild by hand.
- Measured brake numbers, not checkmarks
- Photo and video evidence on every finding
- Per-tractor inspection history in one place
- Out-of-scope findings documented, not invoiced
- Vendor-ready health-check reports you can hand off
Measured on all axles
Pushrod stroke and lining thickness recorded as numbers on Dry, PMI-A, and PMI-B alike. Dry is every bit as rigorous on brakes as the service tiers.
Proof you can forward
Photo and video evidence attached to the findings, ready to send to a vendor, a lessor, or your safety director without a phone call first.
Tractors stay on your yard
No bay time, no shuttle driver, no day lost to a two-hour inspection. W-2 heavy-duty techs come to the truck.
What We Do
The service menu behind every Slick engagement. HD PMI finds it; these keep it from coming back.
Inspections & Compliance
DOT inspections, DVIRs, and safety audits documented in TruView. Audit-ready, always.
Preventive Maintenance
Scheduled oil changes, fluid checks, tire rotations — the foundation of fleet uptime.
Running Light and Medium Duty Too?
HD PMI is built for Class 7–8 tractors and trailers. For Class 1–6 vans and medium-duty trucks, you have two ways to buy.
Slick UpTime
Managed fleet maintenance — Class 1–6
We own your uptime with you. One monthly program covers your PM rhythm and prepaid corrective labor, with a coordinator who answers for it.
See Slick UpTimeSlick PMI+
On-demand mobile maintenance — Class 1–6
You tell us what you need, we roll the van. Per-visit work on your yard, documented in TruView, invoiced per visit.
See Slick PMI+Slick HD PMI FAQ
Common questions about the Dry, PMI-A, and PMI-B tiers.
Stop guessing what your last PMI missed.
Book a 30-minute discovery session. We'll map Dry, PMI-A, and PMI-B to your intervals, set your route cadence, and scope it to your fleet.