
Chevy Silverado & GMC Sierra 1500 Skid Plates: The 2019–2026 Buyer's Guide.
What the factory Z71, Trail Boss and AT4 skid plates actually cover on a 2019–2026 Silverado or Sierra 1500 — and what they leave exposed. Coverage by component, the Chevy-vs-GMC fitment question answered, and how to spec 1/4″ aluminum armor for the T1 platform.
What the factory Z71, Trail Boss and AT4 skid plates actually cover on a 2019–2026 Silverado or Sierra 1500 — and what they leave exposed. Coverage by component, the Chevy-vs-GMC fitment question answered, and how to spec 1/4″ aluminum armor for the T1 platform.
The 2019–2026 Silverado 1500 and Sierra 1500 are the same truck underneath — same T1 platform, same frame, same underbody packaging — which means the same skid plates fit both. If your truck has the Z71, Trail Boss, or AT4 package it left the factory with some underbody protection, but that coverage stops well short of the transmission, catalytic converters, and transfer case. This guide covers what's exposed, what the factory plates actually protect, and how to spec real 1/4″ aluminum armor. We manufacture these plates in Colorado and install them, so we'll be straight about what ours cover and what they don't.
Jump to what's exposed · what the factory misses · Chevy vs. GMC · our 1500 lineup · how to choose · FAQ
What's exposed under a 2019+ Silverado or Sierra 1500
The T1 platform put a lot of expensive hardware close to the ground. Front to back:
- Engine oil pan — the lowest, most forward casting. A cracked pan means immediate oil loss, and an engine run dry is a replacement engine.
- Transmission pan and crossmember — exposed across the mid-belly on both the 8-speed and 10-speed automatics.
- Catalytic converters — a target for both trail strikes and theft. GM full-size trucks appear on national most-stolen-converter lists year after year.
- Transfer case — on 4WD trucks, an aluminum housing with very little tolerance for a direct hit.
- Fuel tank — large and low toward the rear, with a thin factory shield at best.

What the factory Z71, Trail Boss and AT4 skids cover — and miss
Credit where it's due: GM's off-road packages ship with more underbody protection than a base work truck. The Z71 package, the Custom and LT Trail Boss, and the GMC AT4 all include factory skid plate coverage.
What that coverage has in common with every other factory setup we see on the rack:
- It's front-biased. Factory protection concentrates on the front of the engine and the front differential area. The transmission, converters, and transfer case sit behind it, in the open.
- It's thin stamped steel. Factory plates are formed sheet, not plate. They deflect gravel and debris well and deform under a real rock strike — which is the job they were designed for, just not the job owners assume they do.
- Base and mid trims get very little. If your truck isn't a Z71, Trail Boss, or AT4, assume there's essentially nothing structural under it.
That gap is the reason this product category exists. The rule of thumb: factory off-road packages protect the front; everything from the transmission back is aftermarket territory.
Chevy Silverado vs. GMC Sierra — do the same plates fit?
Yes. The 2019–2026 Silverado 1500 and Sierra 1500 are built on the same GM T1 platform with the same frame and the same underbody packaging. Sheet metal, interiors, and trim packages differ; the parts of the truck a skid plate bolts to do not.
We list them as separate products so you can order by the badge on your tailgate without second-guessing fitment, but the plates themselves are the same design. If you drive a Sierra and land on a Silverado product page, you're in the right place — just switch to the matching listing.
The same logic does not extend upward. The 2500HD and 3500HD are a different platform with different packaging and need their own plates, and the Colorado and Canyon are different again.
Our Silverado / Sierra 1500 lineup
Every plate is CNC plasma-cut from 1/4″ 5052-H32 aluminum, press-brake formed, powder-coated black as standard, and bolts to factory mounting points with no drilling. Made in Wheat Ridge, Colorado, backed by a lifetime warranty, and fitted to the 2019–2026 model years.
The transmission plate is the one most owners start with — it covers the transmission pan and shields the catalytic converters in a single piece, which is exactly the run the factory package leaves open. No fuel tank plate for this platform yet; demand is how new plates get engineered here, so tell us if you want one.
Every plate above is also listed in a Sierra 1500 version — same design, ordered by badge. Browse everything in the Chevy and GMC collection.
How to choose — what actually matters
The GM 1500 aftermarket is thinner than the Ford or Toyota equivalents, so there's less to compare and more listings that describe themselves vaguely. Five things worth checking on any plate, ours included:
- Coverage. Does it protect the transmission, converters, and transfer case — or repeat the front-only coverage your Z71 or AT4 already has?
- Thickness. 3/16″ is the market norm; 1/4″ is the premium spec. Resistance to permanent bending scales with the square of thickness, so the extra 1/16″ buys more than it sounds like. Full engineering in our aluminum vs. steel breakdown.
- Named alloy. "Aluminum" without a grade tells you nothing. 5052-H32 is the marine-grade spec worth asking every vendor for.
- Finish. Bare plate oxidizes gray within a season. Powder-coated as standard is what you want, not as a paid upgrade.
- Serviceability. Oil-drain and filter access cutouts decide whether every oil change means dropping armor.
Working out what a full setup costs? Our skid plate cost guide breaks down pricing by plate type, what installation adds, and what underbody damage costs when there's nothing there.
Install
Every plate is bolt-on, no-drill — it uses existing frame mounting points and ships with hardware and instructions. Budget roughly an hour of labor per plate section; a full package is an afternoon in the driveway with a jack, stands, and hand tools.
Want to see the job before you buy it? The full step-by-step is published: 2019–2026 Chevy Silverado 1500 Skid Plate Package installation instructions. Every fastener and factory mounting point, in order — the same document applies to the Sierra 1500.
Rather have it done? We install every plate above at our Wheat Ridge / Denver shop. Call or text (970) 341-4221 for an estimate — and if you're adding a lift or tires, do it all in one visit.
Frequently asked questions
Do Silverado 1500 and Sierra 1500 skid plates interchange?
Yes. Both are built on GM's T1 platform with the same frame and underbody, so the plates are the same design. We list them separately so you can order by badge, but fitment is identical.
Does the Z71 / Trail Boss / AT4 package already include skid plates?
It includes some — concentrated at the front of the truck, in stamped steel. The transmission, catalytic converters, and transfer case are typically still exposed, which is the gap our package is built to close.
How hard is the install?
Bolt-on to factory points, no drilling — an afternoon in the driveway with a jack, stands, and hand tools. The full instructions are published so you can read the job before you commit to it.
Do these fit the 2500HD or 3500HD?
No — the HD trucks are a different platform with different underbody packaging. You want the Silverado 2500HD/3500HD package or the Sierra 2500HD/3500HD package; our HD guide walks through the differences.
Do they fit the Colorado or Canyon?
No — those are mid-size trucks on their own platform. The Chevy Colorado skid plate package is the one you want, and our Colorado and Canyon guide covers which plates fit which truck.
Aluminum or steel for a Silverado 1500?
For most owners, 1/4″ 5052-H32 aluminum: it resists permanent bending better than the 3/16″ steel most kits use, weighs roughly half as much, and won't rust against the frame. Steel's real advantage is surface hardness against repeated rock dragging. The full comparison is in our aluminum vs. steel guide.
Do the plates protect against catalytic converter theft?
The transmission skid plate covers the converter run, which makes a cut substantially slower and louder. Details in our catalytic converter protection guide.
Armor your 1500
Have us install it in Denver — call or text (970) 341-4221. Not sure which pieces you need for your trim? Email sales@juggernautusa.com with your year and trim and we'll spec it. Bolt-on, no drilling, hardware and instructions included, lifetime warranty, free continental-US shipping.
Armor your 1500
Shop your plates below, or email sales@juggernautusa.com with your year and trim and we’ll spec it.
2019-2026 Chevy Silverado 1500 Transmission Skid Plate & Cat Shield
2019-2026 Chevy Silverado 1500 Transfer Case Skid Plate
2019-2026 Chevy Silverado 1500 Skid Plate Package
One part number, one box, one install afternoon.
Free shipping, lower 48 · guaranteed fit or we cover return shipping · cut, welded and coated in Wheat Ridge, CO
Fitment varies by model year, wheelbase, and roof height. Always confirm your exact configuration before ordering — we check fitment free with every quote.
1/4" 5052-H32 aluminum, powder-coated, bolt-on with no drilling, lifetime warranty, free continental-US shipping — or have us install it at our Denver shop.


