If you sell or install ride control—or you just refuse to guess hydraulic vs air-adjustable on a sagging half-ton—the Gabriel Shocks and Struts Catalog (2018) is the passenger / light-truck Gabriel book we keep under Catalogs. It covers cars, light trucks, and SUVs with Gabriel’s hydraulic lines plus the air shocks (load-assist / air-adjustable) shops still hang when a coil spring alone won’t hold tongue weight or a camper shell.
This page is a guide to that source book—how air shocks work, when to use them, how to read Gabriel air-shock lines vs regular hydraulic dampers, and how this book relates to the Gabriel Heavy Duty catalog and KYB. It is not another year/make/model dump. For browse-by-vehicle, use Mechanics’ Files. For the library of parts books, stay here under Catalogs.
Just Suspension is a participant in the Amazon Services LLC Associates Program. Links to Amazon may earn a commission at no extra cost to you.
What’s inside the Gabriel 2018 catalog
Think of it as Gabriel’s U.S. ride-control application bible for street machines and light trucks. Typical coverage on each vehicle sheet:
- Front struts / cartridges — Gabriel strut assemblies and cartridge applications where listed
- Rear shocks (hydraulic) — gas-charged twin-tube and related Guardian / Ultra / ProGuard-style replacements
- Air shocks / load-assist — air-adjustable rear dampers (Hijackers / Load Carrier family and siblings) for towing and sagging rears
- ReadyMount / complete corner units — when Gabriel offers a strut + mount assembly for the platform
- Notes — 2WD vs 4WD, spring type, electronic-suspension exclusions, “air shock available,” qty per axle
Like Moog and KYB, Gabriel sheets almost never list a single model year alone. You’ll see stacked year ranges with leftover trim notes. If the book lists both a hydraulic rear shock and an air-adjustable option for the same truck, they are different jobs—not two part numbers for the same ride.
Air shocks: how they work (and what they are not)
A Gabriel air shock (load-assist / air-adjustable) is still a hydraulic damper—but it adds an air sleeve or chamber you can pressurize with a Schrader valve (or a small onboard compressor kit). Air pressure raises the effective spring rate at that corner so the rear doesn’t squat under a load. Bleed the air down and the truck sits closer to unloaded ride height.
What air shocks are good for:
- Towing — trailers that plant tongue weight on the hitch and flatten the rear springs
- Sagging rear — worn coils/leaves plus a camper shell, toolbox, or permanent cargo
- RV / trailer tongue weight — weekend warriors who need height when hitched and a normal stance when empty
- Light trucks & vans — half-tons and vans that see intermittent overload but aren’t full commercial chassis (those often belong in the Gabriel Heavy Duty catalog)
What air shocks are not: they are not a full air-spring suspension (no primary air bags replacing the coil/leaf), not a lift kit, and not a substitute for a broken spring. If the rear spring is dead, replace the spring—then decide whether you still want load-assist damping. Over-inflating an air shock to “fix” a collapsed coil will cook the damper and still leave you with bad geometry.
Reading Gabriel air-shock lines vs hydraulic
Left to right, a typical Gabriel application line looks like other ride-control books:
- Year range — stacked newest-first. If your year sits inside the range, that SKU applies unless a note says otherwise.
- Position — Front / Rear, Left / Right when they differ, or “Rear (2)” when both sides share a number
- Product line / part number — hydraulic line name + SKU, or an air-adjustable / load-assist callout with its own SKU
- Qty & notes — pieces per vehicle, exclusions, “with air shocks,” mounting eye size, or electronic-suspension exceptions
Bay quick-reference:
- Hydraulic Gabriel (Guardian / Ultra / ProGuard and kin) — fixed-rate damping for daily driving. No Schrader valve. Match the catalog line to the ride you want; don’t mix left Ultra with right Guardian unless you have a reason.
- Air / load-assist lines (Hijackers, Load Carrier, and related) — rear-biased applications with an inflation valve. Same mounting points as many hydraulic rears on that truck, but the part number and the job are different. Confirm eye/bushing size and compressed length—air bodies can be bulkier.
- ReadyMount / complete struts — strut + mount (and often spring hardware) as a corner unit when Gabriel catalogs the platform. Check whether the spring is included before you tear the old corner apart.
When both a hydraulic rear and an air-adjustable rear appear on the same sheet, ask the customer: Do you tow or haul enough to need adjustable height? If yes, air. If they just want a firm daily ride with no compressor hose in the fender well, stick with hydraulic—and look at KYB Gas-a-just as another firm option when that book lists the vehicle.
Regular Gabriel shocks & struts (brief but real)
This book is still a full shocks-and-struts catalog, not an air-shock pamphlet. Most rows are ordinary hydraulic replacements: fronts as struts or cartridges, rears as twin-tube gas shocks. Use the same discipline you use on KYB—read the year range, the 2WD/4WD note, and any “except electronic” callout. Electronic / adaptive suspensions are usually excluded; buying a passive Gabriel for a MagneRide corner is a parts-runner trip you don’t need.
Cross-check heavy RV, bus, and commercial chassis in the Gabriel Heavy Duty Catalog—that book is the fleet/HD sibling, not a duplicate of this 2018 passenger/light-truck book.
What we have (and have NOT) built yet
Honest status: we have not built Gabriel-specific HTML year pages yet the way we have for Moog chassis and Wagner Ram brakes. There is no /{year}-…-gabriel-shocks/ grid to send you to today.
What you can do right now:
- Browse vehicle suspension year pages we did build from Moog under Mechanics’ Files (chassis parts; not Gabriel dampers)
- Use the year/make/model Amazon selector on the Catalogs hub to search Gabriel (or KYB) for your exact vehicle
- Download the Gabriel 2018 PDF below and read the application row—especially air vs hydraulic—with the grammar above
When we publish Gabriel year pages, they will live under Mechanics’ Files like the Moog and Wagner grids—not as a YMM dump inside this Catalogs guide.
Related catalogs
- Gabriel Heavy Duty Catalog — fleet / RV / commercial sibling
- KYB Shocks and Struts Catalog — Excel-G vs Gas-a-just; US vs Europe
- Moog Chassis Master 2007–2018
- Moog Chassis Master 1991–2006
- Moog Chassis Master 1990 and older
- Wagner Brake Master 1995–2019
Buy Gabriel shocks and struts
Search Gabriel air shocks on Amazon
Search Gabriel shocks and struts on Amazon
Prefer a vehicle-specific search? Use the year/make/model selector on the Catalogs hub, or start from a vehicle page in Mechanics’ Files.
PDF archive (full book)
Need the raw Gabriel 2018 PDF for offline use or printing a sheet? Download the full Gabriel Shocks and Struts Catalog archive here:
Download Gabriel-2018-Catalog.pdf (~8 MB)
We keep the PDF at the bottom on purpose. The guide above is how to use the book—especially air vs hydraulic—before you flip pages on a phone in the bay.
#HAPPYMOTORING