Parts for your 2001 Subaru Forester-Control arms

2001 Subaru Forester control arms — purpose, servicing tips, and when to replace

Control arms are absolutely relevant on the 2001 Subaru Forester. The model uses a MacPherson strut front suspension with stamped steel lower control arms (also called transverse links) and a separate lower ball joint. At the rear it uses lateral links and a trailing arm per side, all of which are control arms. This layout is confirmed by the Subaru Factory Service Manual for the 2001 Forester (SF chassis, Front/Rear Suspension sections) and the Subaru Genuine Parts Catalogue (Group 20—Front Suspension, Group 21—Rear Suspension).

On this Forester, the front lower control arms locate the wheel hub in the correct spot and let the suspension move up and down smoothly via two rubber bushes and the lower ball joint. They set key alignment angles like camber and caster, which means they influence tyre wear, steering feel, and braking stability. The rear lateral links and trailing arm keep the back end pointed straight and stable over corrugations and loaded corners.

As part of regular servicing, it’s smart to inspect the control arm bushes and ball joints every 20,000–30,000 kilometres or at each WOF/safety check. Look for:

• Cracked, torn, or oil-soaked bushes, excessive fore–aft movement in the arm.
• Split or weeping ball joint boots, or play felt when the wheel is rocked.
• Uneven tyre wear, steering wander, clunks over bumps, or a pull under braking.

Replacement options depend on condition and budget. If the arm is straight and rust-free, new bushes and a fresh lower ball joint can get it sorted. If the arm is bent or the bush housings are flogged out, a complete arm assembly can save time and often cost. Typical workshop time is about 1.5–2.5 hours per front side, plus a four-wheel alignment. Always book an alignment after any arm, bush, or ball joint work—this Forester responds well to getting camber and toe set correctly, and it’ll save tyres.

Trade tips that help:

• Soak pinch bolts and through-bolts with penetrant ahead of time, replace hardware if heavily corroded.
• Tighten control arm pivot bolts with the vehicle at normal ride height to avoid preloading new bushes.
• Recheck fasteners and tyre wear after 500–1,000 kilometres.

Done properly with quality parts, fresh control arms and bushes sharpen the steering, tame brake shimmy, and make the Forester feel tidy and safe on Kiwi and Aussie roads.

Does the 2001 Subaru Forester use control arms?

Yes. Up front it runs lower control arms with two bushes and a separate lower ball joint, at the rear it uses lateral links and a trailing arm per side. This is documented in the Subaru Factory Service Manual and the Subaru parts catalogue for the 2001 SF Forester.

What are common signs the control arm bushes or ball joints are worn?

Clunks over bumps, vague steering, uneven tyre wear, and a pull under braking are classic giveaways. Visual checks often show cracked bushes or a split ball joint boot. If there’s any play at the wheel hub when rocked, it’s time to replace parts.

Should both front control arms be replaced together, and is an alignment needed?

Replacing in pairs keeps handling balanced side to side. A four-wheel alignment is essential after any control arm, bush, or ball joint work to protect tyres and restore proper road manners.