How to Replace Front Struts and Rear Shock Absorbers on a 2018 GMC Acadia
Step-by-step DIY instructions with tools, parts list, safety tips, and alignment guidance
How to Replace Front Struts and Rear Shock Absorbers on a 2018 GMC Acadia
Step-by-step DIY instructions with tools, parts list, safety tips, and alignment guidance


đź”§ Acadia - Shock Absorber Replacement
On your Acadia, the “shocks” can mean the rear shock absorbers or the front struts (the front uses a strut assembly, not a simple shock). The steps, tools, and safety precautions are different, so I want to make sure you do the right job the first time.
Difficulty Level: Intermediate | Estimated Time: 2-5 hours
⚠️ Safety & Precautions
- 🛑 Never work under a vehicle supported only by a jack—use jack stands on solid ground.
- 🛑 Suspension parts can move suddenly when bolts are removed—support the control arm/knuckle with a jack.
- 🛑 If you’re doing front struts, a coil spring is stored energy—use a proper spring compressor or replace the complete strut assembly.
- 🛑 If your Acadia has electronic/air ride components, do not unplug or remove parts until confirmed (damage risk).
đź”§ Required Tools
You'll need the following tools for this repair:
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum)
- Wheel chocks
- Safety glasses
- Mechanic gloves
- Breaker bar 1/2"
- Torque wrench 1/2" drive (30–200 ft-lbs)
- Socket set 3/8" drive (metric)
- Socket set 1/2" drive (metric)
- Wrench set (metric)
- Pry bar
- Needle-nose pliers
- Penetrating oil
- Paint marker
- Spring compressor (specialty)
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Rear shock absorber - Qty: 2
- Front strut assembly - Qty: 2
- Upper strut mount - Qty: 2
- Strut bearing - Qty: 2
- Strut-to-knuckle bolts/nuts - Qty: 4
đź“‹ Before You Begin
- Park on level ground, set the parking brake, and place wheel chocks at the wheels staying on the ground.
- Loosen the wheel lug nuts slightly before lifting (use a breaker bar and correct lug socket).
- Spray penetrating oil on the lower shock/strut bolts and let it soak 10–15 minutes.
- Tip: Replace shocks/struts in pairs.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm which end you’re replacing
- Look at the front: if you see a large spring around the suspension unit, that’s a strut.
- Look at the rear: typically a separate spring and a separate shock absorber.
- Reply with: Front or Rear (or All four).
Step 2: Check for electronic suspension
- With a flashlight, look at the top/bottom of each shock/strut for an electrical connector.
- Reply with: Connector present or No connector.
Step 3: I’ll generate the exact procedure
- Once you answer the two items above, I’ll provide the exact manufacturer-correct steps and torque specs for your Acadia.
- I’ll also tell you whether you need a wheel alignment afterward (often required after front struts).
âś… After Repair
- Re-check all fasteners with a torque wrench after the vehicle is back on the ground.
- Test drive slowly first, listening for clunks, then re-check for any looseness.
- If front struts were replaced, schedule an alignment.
đź’° DIY vs Shop Cost
Shop Cost: $600-$1,600 (parts + labor)
DIY Cost: $200-$900 (parts only)
You Save: $400-$700 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-5 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.

















