Keep your hardworking Ford truck's rear end planted with the Monroe Gas-Magnum Rear Suspension Shock Absorber 34963. Engineered for full-size trucks and vans, it installs as a rear replacement for the 1985-1996 Ford F-150, 1980-1996 Ford F-250, 1986-1991 Ford F-200, 1996 Ford F-100 Ranger, the 1980-1991 and 2011-2016 Ford F-350, and the 1999-2016 Ford F-350 Super Duty — see the "Vehicles it fits" section for engine-level details.
- Designed for trucks and vans: full-displaced valving on the compression cycle for firm, controlled ride and handling without a harsh feel.
- Built to last: a sintered iron piston and self-lubricating fluid seal reduce friction against the piston rod; on non-dust-shield units, a heavy-duty nitrocarburized rod adds durability.
- Consistent ride: OE all-weather fluid with special modifiers handles temperature extremes and smooths rod reaction.
- Nitrogen gas-charged: helps maintain tire-to-road contact by reducing aeration and shock fade.
- Larger capacity: a bigger bore and 2-in. reserve tube hold more oil — up to twice the fluid capacity of standard 1-in. bore shocks — for efficient operation and longer service life.
Shocks wear gradually; signs this rear shock may need replacing include excessive bouncing, nose dive, or reduced control over bumps. Sold individually — replace both rear shocks together as a matched pair for balanced ride control. Backed by Monroe's Limited Lifetime Warranty and Feel the Difference Guarantee.
Interchange: HD12140854 · TS3431672B · BC3Z18125E · BC3Z18125F · 58406 · 58409 · 345072 · 555053 · 565122 · FD116 · 210179 · 32231 · 37052 · SH81082 · 76963 · 12140130
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
HD12140854, TS3431672B, BC3Z18125E, BC3Z18125F, 58406, 58409, 345072, 555053, 565122, FD116, 210179, 32231, 37052, SH81082, 76963, 12140130
Frequently Asked Questions
Is the Monroe 34963 a front or rear shock?
It is a rear suspension shock absorber (Monroe Gas-Magnum), designed for the rear axle of the listed full-size Ford trucks and vans.
Which vehicles does it fit?
It fits the 1985-1996 Ford F-150, 1980-1996 F-250, 1986-1991 F-200, 1996 F-100 Ranger, 1980-1991 and 2011-2016 F-350, and 1999-2016 F-350 Super Duty. Check the "Vehicles it fits" section.
Should I replace both rear shocks at once?
It's sold individually, but replacing both rear shocks together as a matched pair is recommended for balanced, even ride control.
Is this shock gas-charged?
Yes. It uses a nitrogen gas charge that helps maintain tire-to-road contact by reducing aeration and shock fade.
What warranty covers it?
It comes with Monroe's Limited Lifetime Warranty and the exclusive Feel the Difference Guarantee.
