Why Choose Monroe Max-Air for Your Mustang
Rear suspension sag is common on Mustangs, especially as springs age or when running wider tires, extra cargo, or spirited driving. Max-Air shocks combine traditional gas-charged damping with air-adjustable support, letting you fine-tune rear ride height without swapping springs or overhauling the suspension.
Add air when you need support. Drop it back down when you don’t. Simple.
COMPATIBILITY – Fits 1957-1958 Ford Custom 300; 1957-1970 Ford Fairlane; 1966-1970 Ford Fairlane; 1960-1965 Ford Falcon; 1966-1970 Ford Falcon; 1961-1965 Ford Falcon Sedan Delivery; 1957-1957 Ford Custom; 1965-1968 Ford Mustang; 1969-1973 Ford Mustang; 1960-1965 Ford Ranchero; 1961-1963 Ford Thunderbird; 1968-1971 Ford Torino; 1968-1970 Ford Torino; 1969-1971 Ford Torino; 1969-1970 Ford Torino; 1970-1971 Ford Torino; 1970-1970 Ford Torino; 1971-1971 Ford Torino; 1968-1971 Mercury Cyclone; 1968-1970 Mercury Cyclone; 1958-1958 Edsel Villager; 1958-1958 Edsel Citation; 1958-1958 Edsel Corsair; 1958-1958 Edsel Ranger; 1958-1958 Edsel Bermuda; 1958-1958 Edsel Roundup; 1958-1958 Edsel Pacer; 1960-1965 Mercury Comet; 1966-1969 Mercury Comet; 1967-1973 Mercury Cougar; 1962-1963 Mercury Meteor; 1968-1971 Mercury Montego; 1975-1980 American Motors Pacer; 1979-1983 Mazda GLC
From the manufacturer
Vehicle Compatibility
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Ford Mustang
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Designed for rear suspension applications
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Fits select Mustang models depending on year and trim
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⚠️ Always verify year, trim, and suspension configuration before ordering.
MONROE MAX-AIR SHOCK ABSORBERS
Ideal for vehicles that consistently haul heavy loads or tow trailers, Monroe Max-Air air shock absorbers are designed to maintain level vehicle height. These shocks can be inflated or deflated as needed, up to 150 PSI, to maintain ride height when under load with additional weight up to 1,200 lbs. Capacity is limited by vehicle suspension, tires and transmission. See vehicle owner’s manual for details.
Key Features & Technical Highlights
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Part Number: MA705
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Type: Rear air-adjustable shock absorbers
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Quantity: Pack of 2
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Air Adjustable: Yes
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Damping: Gas-charged for consistent control
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Use Case: Load leveling, stance adjustment, rear support
Built to handle added rear load while maintaining controlled, predictable ride behavior.
Real-World Benefits You’ll Notice
These shocks aren’t about track lap times—they’re about control, stance, and drivability.
Benefits include:
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Adjustable rear ride height
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Reduced rear-end squat under acceleration
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Improved load handling with passengers or cargo
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Better tire clearance
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Maintains comfortable street ride when properly inflated
Perfect for daily drivers, cruisers, and Mustangs that still do Mustang things.
Air Adjustable = Control When You Need It
With Max-Air shocks, ride height is adjustable using air pressure.
Dial them in for:
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Daily commuting
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Weekend cruising
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Extra passengers
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Wider rear wheels and tires
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Improved stance
Unlike permanent suspension changes, Max-Air gives you flexibility without commitment.
Installation Notes
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Direct bolt-on rear shock replacement
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Air lines must be routed safely away from heat and moving parts
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Inflate both shocks evenly
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Do not exceed manufacturer-recommended air pressure
Professional installation is recommended if you’re unfamiliar with air shock systems.
Safety & Setup Best Practices
Max-Air shocks are designed to assist factory springs, not replace them.
Best practices:
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Do not over-inflate
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Maintain even pressure side-to-side
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Pair with healthy rear springs and bushings
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Inspect air lines periodically
Correct setup ensures long service life and predictable handling.
Why Buy Monroe Max-Air from Pro Street Online
At Pro Street Online, we focus on parts that solve real problems without overengineering. The Monroe Max-Air MA705 shocks offer a proven, cost-effective solution for Mustang owners who want improved stance and load support—without sacrificing ride comfort.
Sometimes the simplest upgrade is still the smartest one.
Hardworking vehicles that consistently haul heavy loads or tow trailers can count on Monroe Max-Air air shocks to carry the load. Not just for ride comfort, shocks are necessary for the safe handling of your vehicle. By maintaining vertical loads placed up on the tires, shocks help ensure consistent tire-to-road contact. Shocks also help maintain a balanced ride by providing resistance to vehicle bounce, roll and sway as well as brake dive and acceleration squat.
CAUSES & CONSEQUENCES OF SHOCK FAILURE
Like many parts on your vehicle, shocks are subject to wear. Causes include damaged bushings, exposure to the elements, loss of oil viscosity and deteriorated components. Driving with worn shocks can result in problems ranging from reduced braking efficiency, tire wear, loss of stability and damage to other suspension parts.
IMPORTANCE OF ALIGNMENT
Always perform an alignment whenever replacement shocks, struts or other ride control parts are installed. Camber, toe and caster settings can all be affected by installing new shocks. Failure to make sure the vehicle’s alignment is within factory specifications can lead to problems like premature tire wear.
HOW TO CONDUCT A SHOCK INSPECTION
Shocks may not show any visible signs of wear, make sure to request a ride control inspection every time your vehicle is brought in for service to ensure they’re in optimal operating condition. When inspecting a vehicle’s shocks: assess how the vehicle is used and perform ride and physical evaluations. Get an understanding of the vehicle’s repair history, the way the vehicle handles and its intended use for clues if the shocks might need changing. Next, take the vehicle for a test drive to determine whether the vehicle’s steering, stopping and stability are compromised. Wrap up the inspection with a physical examination for symptoms of wear which may indicate new shocks are required.
IMPORTANCE OF MAINTAINING RIDE HEIGHT
Proper ride height is crucial to vehicle durability, performance and safety. When inspecting a vehicle, don’t just check the static ride height. The dynamic ride height –the ride height of a vehicle in motion –may tell a different story. The cause of dynamic ride height issues is often worn or damaged coil or air springs, depending on the vehicle suspension. Don’t just replace the shock –be sure to also inspect for and replace worn coil/air springs.
Amazon Customer –
The shocks fit perfectly and they held air and they did their job and they look good as a quality product
Geraldo –
I’ve read the other reviews. The packaging and quality control seems very spotty. Really, more luck of the draw. I came out fine.To be clear, the Monroe Max-Air MA705 is a complete KIT. It is supposed to include two shocks, four bags of mounting hardware(one bag for each shock end), and the air line kit. If you didn’t get all that, something happened in the packaging process. You are not supposed to buy the hardware or the air line kit separately. Again, everything to use the air shocks should be in the box.Some folks have reported leaking shocks. Mine have not budged a fraction of an inch over three days. I would say they don’t leak.I’ve seen posts about these shocks supposed to be white. I’ve looked elsewhere and the shocks are always black. No white shocks anywhere I’ve seen but in the Amazon ad. My shocks are gloss black.I don’t have anything to write on how good the shocks perform from a performance perspective. I have never heard of an air shock having good high performance characteristics, like a Koni or something like that. They perform just fine and do the job. If I was going to the track, I would use a more suitable shock. You use an air shock to keep a car at a certain ride height and they do that pretty good.
Len –
Product was easy to install and fit as it should. Product has performed as expected. I would purchase again.
Claude/Victoria M. –
its a normal air shock seemed like good quality came in black but the lines and fittings were not included so i returned them and just went with a normal shock instead sadly would of loved to have the air shocks
WhatWouldJoeyDo –
Don’t install these in a golf cart they make the cart feel like a rock no flex at all . Returned. Would be great on the rear of a pickup
Rob Z –
Wish I could give it less then one star. At 35 psi it blew apart every fitting on the air line as soon as the car touched the ground.
J. MICHEL –
I installed these on my ’71 Mustang to pick up the rear end slightly and level the car out. They fit perfect, and the plastic air line holders fit in to existing holes perfectly so I did not have to drill any holes or modify the car in any way. The fill valve fit perfectly through an existing hole underneath the rear license plate. I made sure to run the lines where they wound not come into contact with the exhaust or rub on anything. After some experimenting, I was able to lift the rear about 1-1/4 inches with very good ride quality.Some Notes: The shocks come painted black, not white as indicated in the product photo. Also, be careful how you run the airline to the shocks. They do not provide you much extra line. If you make a mistake or damage the line, you will not have enough line to finish the installation.I was pleased with my results and installation
Gary –
Good quality, case solid, breakaway switch is really strong feels like a magnet holds it securely. Good price. I feel like this unit will las a long time. For the price of the AGM battery I was going to replace my old battery, but this unit was much cheaper in the long run. The solar charger is a plus!!!
Michael –
Quick delivery.
Item was what I needed and accurate.Quick delivery.
Taz –
Great Product
Great product. Did trick in raising rear end. Good ride quality.