Shock vs Strut: What’s the Difference, and Which Does Your Ford Have?

A shock only controls how fast your spring bounces. A strut is a structural suspension part: the damper, coil spring and mount built into one assembly. Which one your Ford has depends on the model, the year and which end you’re looking at. Mustangs run struts up front. The Rangers we stock parts for (1983–2011) use plain shocks at both ends. F-150 fronts are the confusing one, because the part looks like a strut and is sold as one. The table below shows what fits.

Shock vs strut in one table

	Shock absorber	Strut assembly
Main job	Controls spring movement (damping)	Damps and is a structural part of the suspension
Coil spring included	No	Yes, on a loaded assembly
Carries vehicle weight	No	Yes
Needs alignment afterward	Usually not	Yes, on the front
Price on our listings	$32–$112	$185–$400
Where we stock it	Ranger front and rear; F-150 and Mustang rear	F-150 front (2009–2013); Mustang front

A vehicle can have both types, one on each end. Struts up front with shocks in the back is a common split. One mechanic’s rule you’ll see online, “shock or strut at each wheel, never both,” holds for most vehicles, but check your own truck rather than assuming.

Which does your Ford have? F-150, Mustang and Ranger

Find your model and year, then match the part number. Don’t order by name alone: “strut” and “shock” are used loosely in catalogs.

Model	Years	Position	Part	Price	Type
F-150	2009–2013	Front	Duralast Loaded Strut LS53-90391B	$185	Loaded strut
F-150	2009–2013	Front	KYB Loaded Strut ASR4172	$400	Loaded strut
F-150		Rear	Duralast TwinTube Shock TS33-30971B	$58	Shock
Mustang	2011–2014, without Performance Package	Front	Duralast Loaded Strut LS54-94961B	$205	Loaded strut
Mustang	2012-2015	Front	KYB Loaded Strut BSR4167	$222	Loaded strut
Mustang	2008-2011	Rear	Duralast TwinTube Shock TS32-33922B	$32	Shock
Ranger	2007-2011	Front/rear	Duralast Monotube MS34-33132B	$47	Shock
Ranger	1998–2011, RWD with coil-spring front, excluding High Ryder	Front	KYB Excel-G 344397	$82	Shock
Ranger (also Bronco II)	1989–2009, RWD	Rear	KYB MonoMax 565011	$112	Shock

Browse by model: F-150 shocks and struts, Mustang shocks and struts, Ranger shocks and struts.

How to tell by looking

A coil spring wrapped around the damper means you’re looking at a strut-style assembly. A slim tube with a mounting loop or stud at each end is a shock.

The F-150 front is where that rule gets muddy. The damper sits inside a coil spring, so it looks like a strut, and parts catalogs call it one. Ford’s front end also uses upper and lower control arms to locate the wheel, which is why some people call it a coil-over shock instead. For buying purposes the name matters less than the fitment. Order the front assembly for your year from the table.

Mustang rear: it depends on the generation

Mustang fronts use struts. The rear changes by generation: older cars have a solid rear axle with separate shocks and springs, and newer ones (2015 on) use independent rear suspension. That’s why the rear shock in the table needs a year check before you order.

Ranger: older trucks only

The Ranger parts we list are for the older trucks. The 2019-and-later US Ranger has a different front design, so don’t order from this table for it.

Can you replace just a shock or just a strut?

Not as a swap. A shock can’t take the place of a strut, and a strut can’t take the place of a shock, so you replace each with its own type. If your front is struts and your rear is shocks, they’re separate jobs.

Left and right are the other question. Most shops replace both sides of an axle together so the two sides behave the same. If you replace front struts, plan on an alignment right after, because the front strut is part of how the wheel is positioned. Check the manufacturer’s service information for your truck before you start.

What’s in a “loaded” strut assembly

A loaded strut arrives pre-assembled. According to our listings, both the Duralast and KYB versions include:

• Coil spring
• Upper strut mount
• Bearing plate / mount insulator
• The strut damper itself (twin-tube or monotube)
• Jounce bumper and dust boot
• Upper and lower spring isolators

A bare strut is just the damper. You’d transfer the spring, mount and everything else from your old one, which means compressing the spring. With a loaded assembly you don’t compress it yourself, and that removes the riskiest step. Brakes, steering and suspension are safety-critical, so follow the service information for your truck, and have a shop do it if you aren’t comfortable with the job.

OEM vs aftermarket struts: how to choose

We don’t stock factory (OEM) Ford parts, so this is about the two aftermarket options on our shelf. Both carry a limited lifetime warranty on manufacturer defects.

Forum threads on other makes are split on OEM vs aftermarket. Some buyers prefer OEM for ride feel, others report good results from aftermarket brands, and prices in those threads often put OEM at roughly double. These are individual experiences on non-Ford vehicles, so treat them as opinion, not data.

On our F-150 fronts the choice comes down to price:

• Choose the Duralast ($185) if you want the lower price and a loaded assembly.
• Choose the KYB ($400) if you prefer that brand and the extra $215 is acceptable.

On the Mustang front the gap is small, $205 for Duralast and $222 for KYB, so price shouldn’t decide it. Check fitment first.

Sometimes neither is the answer. If your struts aren’t leaking and the truck rides normally, you may not need them yet.

Torsion bar vs strut on the F-150

A torsion bar is a steel bar that twists to act as the spring. It replaces the coil spring on trucks that use it.Older 4WD F-150s (roughly 1997–2003) used torsion bars up front, while the 2009–2013 trucks in our table use a coil-over setup.

On a torsion bar truck the front damper is a standalone shock, not a loaded strut. Ride-height adjustment on torsion bars is a job for a shop or the service manual. Nothing in this post covers it.

Signs your shocks or struts are worn

What you notice	Likely cause	What to check
Fluid on the damper body	Leaking seal	Visual check
Bounce after a bump	Worn damper	Press-down check
Noise from the front on a strut truck	Worn mount or bearing	Inspect mount
Uneven tire wear	Worn dampers	Have a shop assess

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