How to Replace Rear Trailing Arm Bushing on a Honda Civic: The Complete DIY Guide
What Does the Rear Trailing Arm Bushing Do?
The rear trailing arm bushing is a rubber-or-polyurethane-isolated pivot point that connects the rear trailing arm to the vehicle’s subframe or chassis. On Honda Civic platforms—particularly the EG (1992–1995), EK (1996–2000), and EM/EP (2001–2005) generations—this bushing allows the trailing arm to pivot vertically as the suspension cycles, while controlling fore-aft and lateral movement.
When this bushing deteriorates, the rear wheel loses precise location. That translates directly into sloppy handling, uneven tire wear, and that infamous rear-end “clunk” every Civic owner dreads.
Symptoms of a Bad Rear Trailing Arm Bushing
Before you grab your tools, confirm the bushing is actually the culprit. Bad trailing arm bushings produce distinct symptoms that are easy to misdiagnose as worn shocks or bad wheel bearings.
| Symptom | What It Feels Like |
|---|---|
| Rear clunking or knocking | Metallic thud over bumps, potholes, or driveway entries |
| Rear-end looseness | The back of the car feels like it’s steering itself; vague highway stability |
| Poor tracking | Vehicle wanders; requires constant steering correction |
| Uneven rear tire wear | Inner or outer edge wear, feathering, or rapid tread loss |
| Creaking at low speed | Rubber-on-metal squeak when entering driveways or parking |
Pro Tip: Jack up the rear of the car and grab the trailing arm at the bushing location. If you can move it by hand—or see visible cracking, separation, or dry rot in the rubber—the bushing is done.
Tools and Materials You’ll Need
Your tool list depends on which method you choose. We’ll cover both the on-car specialty tool method and the off-car removal method.
Universal Tools (Both Methods)
- Floor jack + jack stands (rated for your vehicle weight)
- Lug wrench / impact gun
- Metric socket set (10mm–19mm)
- Torque wrench (⅜-inch and ½-inch drive)
- Penetrating oil (PB Blaster or equivalent)
- Wire brush + brake cleaner
- Threadlocker (Loctite Blue 242)
- Replacement bushings (pair—always replace both sides)
Method 1: On-Car Specialty Tool
- Trailing arm bushing tool kit (e.g., Schley SL65130 or ABN 9886)
- 14mm, 17mm, and 19mm sockets
- Hydraulic bottle jack (to assist with tool leverage)
Why a specialty tool? Professional-grade on-car bushing tools can cut the job from 1.8 hours per side down to roughly 15 minutes per side, without disconnecting brakes, calipers, or brake lines.
Method 2: Off-Car (Trailing Arm Removed)
- Ball joint separator (if separating lateral links)
- Hydraulic press or heavy-duty bench vise
- Propane torch or MAP gas torch
- Hacksaw or reciprocating saw
- Cold chisel and hammer
- Sandpaper (80-grit) or flap disc
Safety First: Critical Precautions
- Never trust a jack alone. Use jack stands rated for at least 1.5× your vehicle’s GVWR.
- Work on level concrete. Grass, gravel, or inclines are unacceptable for suspension work.
- Wear safety glasses and gloves. Rust, brake dust, and hot metal are all hazards.
- Allow the exhaust to cool if working near the rear subframe.
- Support the trailing arm before removing the final bolt—it will drop once the bushing bolt is out.
- Note camber shim locations. Some Civic trims use shims between the lateral link and the body. Mark their positions before removal.
Method 1: On-Car Bushing Replacement (With Specialty Tool)
This is the preferred method for most DIYers who have access to a trailing arm bushing tool. It keeps the trailing arm on the car, eliminating the need to disconnect brake hardware, e-brake cables, or ABS sensors.
Step 1: Lift and Secure
Raise the rear of the vehicle until the tires are off the ground. Secure with jack stands under the rear subframe or factory lift points. Remove both rear wheels.
Step 2: Access the Trailing Arm Bushing
Locate the trailing arm bushing where the arm meets the subframe or chassis bracket. On EG/EK Civics, this is a single large bolt (typically 17mm or 19mm) passing through the bushing.
Step 3: Remove Lateral Link Bolts
Remove the two bolts that attach the upper lateral link to the body. Watch for camber shims between the link and the body—mark their orientation and save them.
Step 4: Loosen (Don’t Remove) Toe Link Bolts
Loosen—but do not fully remove—the toe link bolts. This allows the trailing arm to drop enough to access the bushing.
Step 5: Remove the Trailing Arm Bushing Bolt
Remove the main bushing bolt. The trailing arm will drop slightly. You may need to disconnect the brake line bracket or parking brake bracket from the trailing arm to allow enough movement.
Step 6: Mount the Bushing Tool
Install the specialty bushing tool onto the trailing arm. Most tools use a hook design that captures the trailing arm securely, with a hydraulic or threaded press mechanism that pushes against the bushing.
Step 7: Remove the Old Bushing
Apply penetrating oil to the bushing. Use the tool to press or pull the old bushing out of the trailing arm. The tool’s cup should capture the bushing as it exits.
Step 8: Clean and Prep
Clean the inside of the trailing arm bore with a wire brush and brake cleaner. Remove any rust, rubber residue, or burrs. A clean bore ensures the new bushing presses in squarely.
Step 9: Install the New Bushing
Apply a thin film of multi-purpose grease or silicone lubricant to the outside of the new bushing. Align it squarely with the bore and use the tool to press it in until fully seated. For polyurethane bushings, ensure the most tapered flange faces the arm during installation.
Step 10: Reassemble
Reinstall the bushing bolt, toe link bolts, and lateral link bolts. Reinstall any camber shims in their original positions. Torque all hardware to factory specification.
Method 2: Off-Car Bushing Replacement (Trailing Arm Removed)
If you don’t have access to a specialty tool—or if the trailing arm is damaged, bent, or heavily corroded—removing the entire arm is the better option.
Step 1: Remove the Trailing Arm from the Vehicle
Follow Steps 1–5 from Method 1, but fully remove the toe link, lateral links, and any brake hardware attached to the trailing arm. Support the trailing arm and remove it from the vehicle.
Step 2: Remove the Old Bushing
There are three common approaches:
Option A: Hydraulic Press (Cleanest)
- Mount the trailing arm in a bench vise or press fixture.
- Use a press and appropriately sized sockets/cups to push the old bushing out.
Option B: Torch and Chisel (The “Shade Tree” Method)
- Burn out the rubber portion of the bushing with a propane torch. The rubber will char and crumble.
- Once the rubber is gone, use a hacksaw to cut a relief slot in the remaining outer metal shell—being careful not to cut into the trailing arm bore.
- Knock the metal shell out with a cold chisel and hammer.
Option C: Saw and Hammer (For Polyurethane Conversions)
- If converting to polyurethane, you must remove the entire outer metal casing of the original rubber bushing.
- Cut the casing with a hacksaw, then chisel it out. Clean the bore with sandpaper to remove sharp edges.
Step 3: Install the New Bushing
- Clean the bore thoroughly with sandpaper (80-grit) to remove rust and burrs.
- For OEM-style rubber bushings: Press in using a hydraulic press or vise with appropriate adapters. Ensure the bushing is square and fully seated.
- For polyurethane bushings: Remove the inner metal sleeve, lubricate the bushing inside and out with silicone grease or multi-purpose grease, press it into the bore, then tap the inner sleeve back in with a rubber mallet.
Step 4: Reinstall the Trailing Arm
Reverse the removal process. Torque all hardware to factory spec with the suspension at ride height (see critical note below).
OEM Rubber vs. Polyurethane vs. Spherical Bushings
Not all bushings are created equal. The material you choose changes how your Civic drives, rides, and responds.
| Bushing Type | Best For | Ride Quality | Handling | NVH | Lifespan |
|---|---|---|---|---|---|
| OEM Rubber | Daily drivers, comfort-focused builds | Softest, factory feel | Moderate | Lowest | 60k–100k miles |
| Polyurethane | Enthusiasts, autocross, spirited driving | Firmer, more responsive | Improved precision | Slightly increased | 100k+ miles |
| Spherical (Pillow Ball) | Track cars, dedicated race builds | Harsh, solid feel | Maximum precision | Highest (metal-on-metal) | Very long (with maintenance) |
Important: Polyurethane bushings are stronger and last longer than standard rubber, but they can increase noise, vibration, and harshness (NVH). Spherical bushings are not recommended for street-driven Civics—they’re designed for race cars that need zero deflection.
Torque Specs and Alignment Requirements
The “Ride Height Torque” Rule
This is the most critical—and most skipped—step in trailing arm bushing replacement:
Always tighten suspension bolts with the vehicle at ride height.
If you torque the trailing arm bushing bolt, lateral link bolts, or toe link bolts with the suspension hanging at full droop, the rubber bushing will be pre-twisted when the car settles. This causes premature bushing failure, binding, and unpredictable handling.
How to do it: Lower the vehicle onto ramps or use a floor jack under the trailing arm to simulate loaded ride height before applying final torque.
Alignment Is Non-Negotiable
Replacing trailing arm bushings alters rear toe and can affect camber. Even if you marked your shims, the new bushings have different compliance than the worn ones.
Schedule a four-wheel alignment immediately after installation. Driving without alignment will chew through rear tires within 1,000 miles.
Common Mistakes to Avoid
- Reusing worn hardware. Replace cotter pins, and inspect bolts for stretching or thread damage.
- Forgetting camber shims. If your Civic uses shims on the lateral links, losing them means an alignment nightmare.
- Tightening at full droop. Your new bushings will fail in 6 months if you skip ride-height torquing.
- Mixing bushing types. Don’t install polyurethane on one side and OEM rubber on the other. The handling balance will be unpredictable.
- Ignoring the outer metal shell. Polyurethane bushings require the entire old bushing shell to be removed. Leaving it in will prevent proper fitment.
- Skipping the alignment. This is not optional. Rear toe changes with every bushing replacement.
Post-Installation Checklist
Before your first test drive, verify:
- [ ] All suspension bolts torqued to spec at ride height
- [ ] Camber shims reinstalled in original positions
- [ ] Brake line and parking brake brackets reattached
- [ ] ABS sensor wiring undamaged and secured
- [ ] No brake fluid leaks at disconnected lines
- [ ] Wheels spin freely without brake drag
- [ ] No clunking or binding when bouncing the rear corners
- [ ] Four-wheel alignment completed
- [ ] Torque check after 100 miles (suspension settles)
FAQ
Q: How long does it take to replace rear trailing arm bushings on a Civic?
A: With a specialty on-car tool, 30–45 minutes total. Off-car with a press, plan 2–3 hours including removal and reinstallation.
Q: Can I drive with a bad trailing arm bushing?
A: Short distances are possible, but it’s not recommended. A failed bushing causes unstable handling, rapid tire wear, and can stress other suspension components. If the rear end shifts sideways after bumps, stop driving immediately.
Q: What are the correct part numbers for Honda Civic trailing arm bushings?
A: For 1988–2000 Civics, common numbers include 52385-SR3-000 and 52385-S21-003. For 2001–2005 Civics, check 52385-SR3-003 or equivalent. Always verify by VIN at a Honda dealer.
Q: Do I need to replace both sides at once?
A: Yes. Bushings wear symmetrically. Replacing only one side creates an imbalance in rear compliance, leading to unpredictable handling and uneven tire wear.
Q: Can I install polyurethane bushings without removing the trailing arm?
A: Only if you’re using an on-car bushing tool that can handle the polyurethane outer diameter. Most polyurethane kits assume off-car installation because the old outer metal shell must be fully removed.
Q: Why does my Civic still clunk after replacing the bushings?
A: Check the upper lateral link bushings, compliance bushings, and shock mounts. Rear suspension clunks can come from multiple sources. Also verify all bolts were torqued at ride height.
Q: Will polyurethane bushings squeak?
A: Only if installed dry. Always use the supplied grease packet or silicone lubricant on all polyurethane bushing surfaces during installation.
Final
Learning how to replace rear trailing arm bushing on a Honda Civic is one of the highest-impact maintenance jobs you can perform on an aging EG, EK, or EM/EP chassis. Worn trailing arm bushings destroy handling confidence, chew through tires, and make your daily driver feel like a worn-out rental.
Whether you choose the speed and convenience of an on-car specialty tool or the thoroughness of an off-car press installation, the key is patience, cleanliness, and respect for the ride-height torque rule. Pair fresh bushings with a proper four-wheel alignment, and your Civic will track straight, feel tight, and handle like it should.
For enthusiasts seeking sharper response, polyurethane offers a meaningful upgrade. For daily drivers chasing that factory-smooth ride, quality OEM rubber replacements restore the original character. Either way, don’t ignore the clunk—your tires and your sanity will thank you.