How to Replace Front or Rear Struts on a 2018 GMC Acadia (DIY Guide)
Step-by-step strut replacement with required tools/parts, safety tips, torque specs, and alignment notes
How to Replace Front or Rear Struts on a 2018 GMC Acadia (DIY Guide)
Step-by-step strut replacement with required tools/parts, safety tips, torque specs, and alignment notes


đź”§ Acadia - Strut Replacement
On your Acadia, “struts” can mean the front MacPherson strut assemblies (common) and/or the rear shock/strut units (varies by suspension). The exact steps and torque specs change depending on whether you’re doing the front or rear, and whether you’re swapping in a complete pre-assembled unit or reusing your coil spring.
Before I give the exact step-by-step with correct torque specs, I need 2 quick details: (1) Front struts, rear, or all four? (2) Are you installing complete pre-assembled “quick strut” assemblies, or reusing your springs (requires a spring compressor)?
Difficulty Level: Intermediate | Estimated Time: 2.5-5.0 hours (pair)
⚠️ Safety & Precautions
- ⚠️ Support the Acadia with jack stands on the pinch welds/subframe; never rely on a jack.
- ⚠️ If reusing springs: a coil spring compressor stores serious energy—keep hands/face out of the spring path and compress evenly. (A spring compressor clamps the coil so it can be removed safely.)
- ⚠️ Do not let the steering knuckle hang by the brake hose/ABS wire; support it with a bungee cord.
- ⚠️ Mark camber bolt positions (if equipped) before loosening; alignment will be required after front strut work.
- 🔋 Battery disconnect is typically not required for this mechanical job.
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 3/8"
- Torque wrench 1/2"
- Socket set 3/8" (10mm-19mm)
- Socket set 1/2" (15mm-24mm)
- Deep socket set (15mm-21mm)
- Wrench set (10mm-24mm)
- Torx bit set (T20-T50)
- Pry bar
- Needle-nose pliers
- Hammer (2 lb)
- Punch set
- Penetrating oil
- Paint marker
- Bungee cord
- Coil spring compressor (specialty)
- Strut spreader tool (specialty)
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Front strut assemblies - Replace in pairs - Qty: 2
- Front strut mount/bearing kit - Replace in pairs - Qty: 1
- Front strut dust boot & bump stop kit - Replace in pairs - Qty: 1
- Front sway bar end links - Optional if worn - Qty: 2
- Rear shocks/struts - Replace in pairs - Qty: 2
- Rear upper shock mounts/bushings - Optional if worn - Qty: 1
- Replacement strut-to-knuckle bolts/nuts - Optional if one-time-use on your setup - Qty: 1
đź“‹ Before You Begin
- Park on level ground, set the parking brake, and place wheel chocks on the opposite axle.
- Loosen wheel lug nuts 1/2 turn using a breaker bar and correct lug socket before lifting.
- Spray penetrating oil on lower strut bolts and sway bar end link nuts; let it soak 10–15 minutes.
- If doing front struts, plan on a professional alignment afterward.
- If you are reusing springs, inspect the spring for cracks and the top mount bearing for grinding.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm which struts you’re replacing
- Reply with: front, rear, or all four.
- Reply with: quick struts (complete assemblies) or reuse springs (spring compressor).
Step 2: Lift and secure the Acadia
- Use a floor jack (rated 3-ton minimum) to lift the correct corner.
- Place jack stands (rated 3-ton minimum) under the proper support points and lower onto them.
- Remove the wheel using the correct lug socket and a breaker bar 1/2".
Step 3: Take reference marks (front only)
- Use a paint marker to mark the relationship of the strut-to-knuckle area (and cam bolts if present).
- Helps you drive to alignment safely.
Step 4: Pause here to avoid wrong torque specs
- Once you answer the 2 questions above, I’ll give the exact removal/installation steps for your axle (front vs rear) and include all required Torque to XX Nm (YY ft-lbs) values for every fastener.
âś… After Repair
- Double-check that brake hoses/ABS wires are clipped back into their brackets.
- Road test at low speed first; listen for clunks over bumps.
- If front struts were replaced, get a 4-wheel alignment as soon as possible.
- Recheck lug nut torque after 25–50 miles using a torque wrench.
đź’° DIY vs Shop Cost
Shop Cost: $900-$2,000 (parts + labor, varies by axle and parts type)
DIY Cost: $300-$900 (parts only, varies by axle and parts type)
You Save: $600-$1,100 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.5-5.0 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.

















