How to Replace a Shock Absorber

📋 Quick Facts

Unlike struts, shock absorbers do not hold up the vehicle weight - the spring does that separately. Replacement is two bolts per shock and takes 30 to 60 minutes per side. No spring compression needed.

🛠 What You'll Need

• New shock absorbers (matched pair, both rears or both fronts) (shock absorber on Amazon)
• Socket set with deep sockets (typically 17, 19, 21mm) (socket set on Amazon)
• Torque wrench (torque wrench on Amazon)
• Penetrating oil (penetrating oil on Amazon)
• Floor jack and jack stands (jack stand set on Amazon)
• Locking pliers (to hold a stuck stud) (locking pliers on Amazon)

✅ Before You Start - Checklist

• Park on level, solid ground (no slopes, no soft dirt)
• Engine is at the correct temperature (cold or warm as specified)
• All tools and parts on hand BEFORE you begin
• Owner's manual nearby for torque specs and locations
• Safety: gloves, eye protection, hood propped open

📝 Step-by-Step Instructions

1. Park on level ground and chock the wheelsEngine off, parking brake set.
2. Loosen the lug nuts a half-turnWith the wheel on the ground, crack the lug nuts loose.
3. Lift the corner of the vehicle and set jack standsPlace stands at the rated lift point. Remove the wheel.
4. Support the axle (RWD) or lower control arm (IRS) with a jackThis prevents the axle from drooping when the shock comes out.
5. Spray penetrating oil on both shock fastenersWait 10 minutes. Lower bolts especially are usually rusted.
6. Locate the upper shock mountOn most pickups and SUVs this is a stud with a nut, accessed through a fender well or under the bed.
7. Locate the lower shock mountUsually a through-bolt at the axle (RWD) or a stud at the lower control arm (IRS).
8. Hold the upper stud and remove the top nutUse a wrench on the stud (often a hex flat under the rubber bushing). Remove the top nut, washer, and bushing.
9. Remove the lower shock boltLoosen with a breaker bar. Pull the bolt out and the bottom of the shock will drop free.
10. Pull the old shock out of the vehicleCompress it by hand to clear the mount, then slide it out.
11. Compare old vs new shocksExtended length, stroke, mount type (stud vs eye), bushing diameter. Length matters - a shock that is too long will limit suspension travel.
12. Install new bushings on the upper stud (new shock)New shocks come with new bushings - install them on the new shock per the diagram.
13. Feed the upper stud through the mount holeCompress the shock by hand if needed.
14. Bolt the lower mount finger-tightThen tighten the lower mount bolt to spec.
15. Torque the lower mount bolt to specTypical spec: 60-85 ft-lb (passenger car) or 75-110 ft-lb (truck/SUV). Verify with service info.
16. Torque the upper mount nut to specTypical spec: 18-35 ft-lb. Do not crush the upper bushing - tighten until the bushing bulges slightly.
17. Mount the wheel, lower the vehicle, and torque lug nutsLug nuts to spec (80-100 ft-lb passenger, 130-150 ft-lb truck).
18. Test driveHit a few bumps. The vehicle should feel firmer and more controlled.

✅ After You Finish - Verify Checklist

• No tools left in the engine bay or under the car
• Test the system you worked on (start, drive, check, etc.)
• Look for leaks or drips after 5 minutes of running
• Record the date and mileage in your service log
• Recycle or properly dispose of any old parts/fluids

🔗 Related Guides

❓ Frequently Asked Questions