Keep the rear of your truck settled when you tow or haul with the Monroe Load Adjusting Rear Suspension Shock Absorber and Coil Spring Assembly 58633, sold as a pack of 2. It's built for light trucks that occasionally carry or tow varying loads and drops in as a direct-fit replacement for the 1997-2002 Ford Expedition. Each unit combines a shock absorber with a heavy-gauge, calibrated coil spring that adjusts to changing road and weight conditions for added control when things get demanding.
A nitrogen gas charge helps maintain tire-to-road contact by reducing aeration and shock fade. Worn rear units may show sag under load, bottoming, or bounce.
Interchange: SC00006
This part cross-references / interchanges with the following part numbers:
What vehicle does the 58633 assembly fit?
It's a direct-fit rear replacement for the 1997-2002 Ford Expedition. Check the Buyer's Guide tab to confirm the exact fit for your vehicle.
How many units are in the package?
This listing is a pack of 2, covering both rear positions. Replacing rear units in pairs is recommended for balanced, even ride quality.
What makes this a load adjusting assembly?
It includes a heavy-gauge, calibrated coil spring that adjusts to changing road and weight conditions, helping reduce sag when loaded up to 1,200 lbs (see owner's manual for limits).
What are signs the rear units may need replacing?
Common signs include sag under load, bottoming out, excessive bounce, or reduced control when towing or hauling. Diagnose the cause before replacing.
Does it use a gas charge?
Yes. A nitrogen gas charge helps maintain tire-to-road contact by reducing aeration and shock fade for more consistent ride and handling.
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.
