Gabriel HiJackers 49218 Rear Adjustable Air Shock Absorbers - Towing

In this review the Gabriel HiJackers 49218 rear adjustable air shock absorbers are evaluated for drivers who tow, haul, or drive older Chevrolet and GMC trucks. The bottom line: these shocks are aimed at owners who need on-vehicle adjustability to maintain level ride height under varying loads, with up to 1,100 lbs of leveling capacity per pair and a straightforward install that works well for classic and work trucks. They stand out most for tuning ride height and preventing bottoming out when towing.

Key Features

• Adjustable air pressure: Allows tailoring of ride height and comfort to match load weight so trailers and cargo sit level.
• High leveling capacity: Offers up to 1,100 lbs of leveling per pair, helping prevent sag when hauling or towing.
• Corrosion resistance: The super finished chromed piston rod improves durability and reduces wear in exposed underbody conditions.
• Leak proof piston seal: Extends product life by reducing the likelihood of fluid loss over time.
• Wide vehicle fitment: Fits many Chevrolet and GMC C and K series trucks from late 1980s through 2000, simplifying replacement for classic pickups.
• Easy installation: Designed for straightforward bolt-in fit, making it practical for DIY installation on compatible trucks.

Who It's For

These shocks are best for owners of 1988-2000 Chevrolet and GMC C1500, C2500, C3500 and K1500-K3500 trucks who need temporary or occasional towing support and leveling. They suit drivers who alternate between unloaded street driving and heavier towing sessions and want a simple way to adjust ride height without permanent suspension modifications.

They are less appropriate for drivers who need a permanent heavy-duty suspension conversion or those whose vehicles fall outside the listed fitment years and upper/lower mount codes. Also, if long-term leak-free performance is critical, budget-minded buyers should note some users reported occasional oil leakage with similar units.

Pros & Cons

Pros

• Provides readily adjustable leveling for towing, improving handling and reducing bottoming out.
• Good value compared with replacing complete suspension components, with many customers praising fit and ride quality.
• Durable finishes and leak-proof seals are intended to extend service life in towing applications.
• Relatively easy to install on supported Chevrolet and GMC truck models.

Cons

• Some users report occasional oil leakage, so quality can vary between units.
• Intended for temporary towing/short term heavy loads rather than as a permanent heavy-duty suspension replacement.

Specifications

Fitment	1988-2000 Chevrolet and 1988-2000 GMC C and K series trucks
Stroke (in)	9.98
Extended Length (in)	26.34
Collapsed Length (in)	16.36
Upper Mount Code	BP14
Lower Mount Code	ES34
Interchange Part Numbers	MA764, 729839, 49218, 88946627, 504-539

Our Verdict

The Gabriel HiJackers 49218 rear adjustable air shocks are a sensible, cost-effective choice for truck owners who tow or haul periodically and need on-vehicle leveling and improved ride control. They deliver notable benefits in handling and load support for compatible Chevrolet and GMC trucks and are good value for those who want adjustable support without a full suspension overhaul, though buyers should be aware of occasional reports of leakage.

Frequently Asked Questions

Will these fit my older Chevy or GMC truck?
They fit many Chevrolet and GMC C1500, C2500, C3500 and K1500-K3500 trucks from 1988 through 2000; confirm upper mount code BP14 and lower mount code ES34 for correct fit.

How much weight can they support?
When adjusted they offer up to about 1,100 lbs of leveling capacity per pair to help prevent sag during towing.

Are they difficult to install?
No, these are designed for straightforward installation and are commonly installed by DIY mechanics on compatible classic and work trucks.