Level the tail when you're hauling with the Monroe Max-Air MA770 Air Adjustable Rear Air Shock Absorber, sold as a pack of 2. This Max-Air unit installs as a direct-fit rear replacement for the 1983-2011 Ford Ranger, 1994-2008 Mazda B3000, and 1994-2009 Mazda B4000 — see the Buyer's Guide tab for engine-specific coverage.
Shocks wear as a pair, so replacing both rear units together helps keep ride quality balanced side to side.
Interchange: 8L5Z18125AJ · 8L5Z18125AK · AL5Z18125AK
This part cross-references / interchanges with the following part numbers:
What vehicles does the MA770 fit?
It's a rear air shock for the 1983-2011 Ford Ranger, 1994-2008 Mazda B3000, and 1994-2009 Mazda B4000. Check the Buyer's Guide tab to confirm the fit for your exact year and engine.
How many shocks are included?
The MA770 is sold as a pack of 2, covering both rear positions on the vehicle.
How much air pressure can it hold?
The air chamber can be inflated or deflated up to 150 PSI to help maintain level height with added weight up to 1,200 lbs, limited by the vehicle's suspension, tires and transmission.
How do I inflate these shocks?
A special air fitting ties into the factory air system where applicable, or you can inflate manually with an air compressor. Some applications pair with a Monroe air hose AK kit.
What are signs my rear shocks may need replacing?
Excessive bouncing, bottoming out under load, a sagging rear, uneven tire wear, or fluid leaking from the shock body are common signs the rear shocks may need replacement.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
