Smooth out a busy back axle with the Monroe OESpectrum Rear Suspension Shock Absorber 37013. This nitrogen gas-charged rear shock is designed to help restore a light truck's original factory drivability, damping impacts while filtering out impact-related noise, vibration and harshness. It drops in as a direct-fit replacement for the 1984-1990 Ford Bronco II, 1983-2011 Ford Ranger, 1994-1997 and 2001-2009 Mazda B2300, 1998-2001 Mazda B2500, 1994-2007 Mazda B3000 and 1994-2004 Mazda B4000 — see the Buyer's Guide tab for the full engine-level list.
- Exceptional handling: Full displaced valving is tuned to the vehicle and a larger bore provides more efficient damping control for a consistent, smooth ride.
- Control and durability: A PTFE-banded piston delivers consistent sealing between the piston and pressure tube for better control and increased durability.
- Reduced NVH: The Twin Technology Active Control System isolates impact-related noise, vibration and harshness under most driving conditions.
- Improved ride: The nitrogen gas charge maintains tire-to-road contact by reducing aeration and shock fade.
OE all-weather fluid helps resist extreme temperatures and oil breakdown, and a self-lubricating seal helps reduce premature wear. Backed by Monroe's Limited Lifetime Warranty and Feel the Difference Guarantee.
Frequently Asked Questions
What does this shock absorber do?
It dampens rear suspension movement to help control ride motion and maintain tire-to-road contact, filtering out impact-related noise, vibration and harshness on the listed light trucks.
Is this a front or rear shock?
This is a rear suspension shock absorber. It is cataloged for the rear position on the applications listed in the Buyer's Guide tab.
What vehicles does the 37013 fit?
It fits the 1984-1990 Ford Bronco II, 1983-2011 Ford Ranger, 1994-1997 and 2001-2009 Mazda B2300, 1998-2001 Mazda B2500, 1994-2007 Mazda B3000 and 1994-2004 Mazda B4000. See the Buyer's Guide tab.
How is it gas-charged?
It uses a nitrogen gas charge that reduces aeration and shock fade, helping maintain tire-to-road contact for a more consistent ride and handling.
What are signs my rear shocks may need replacing?
Excessive bouncing, a harsh or unsettled ride, and reduced control over bumps may signal worn shocks. Diagnose the cause first, and replace both sides together for balanced ride control.
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