If you’re looking to upgrade or replace the rear shocks on your 2017 Chevy Tahoe LT four-wheel drive—and want to know about fitting 7-8 inch options—you’re not alone. Many Tahoe owners seek improved ride quality or extra clearance, but choosing the right shocks can feel confusing.
This article unpacks everything you need to know: how to determine the correct shock size, important considerations, and helpful tips to make your Tahoe’s ride smoother and safer.
Related Video
Understanding the 2017 Chevy Tahoe LT Four-Wheel Drive Rear Shock (7-8 Inch)
If you’re considering replacing or upgrading the rear shocks on your 2017 Chevy Tahoe LT four-wheel drive, you’ve probably encountered references to “7-8 inch” rear shocks. Knowing what this means, why it matters, and how to tackle the job can make a world of difference for your ride quality, comfort, and vehicle longevity.
Let’s break down the essentials, from understanding the purpose and size of rear shocks, to selecting and installing the right shocks for your Tahoe.
What Does the “7-8 Inch Rear Shock” Mean?
When you see “7-8 inch” in discussions about shocks for the 2017 Chevy Tahoe, this typically refers to the shock’s travel or its compatibility with lift kits that raise the vehicle by 7 to 8 inches. This denotes shocks designed to work effectively with vehicles that have been lifted beyond factory ride height.
- Factory Replacement Shocks: Standard shocks match the original equipment manufacturer (OEM) height.
- Larger 7-8 Inch Shocks: Needed when the Tahoe is equipped with a lift kit between 7 and 8 inches tall.
Understanding Your Need:
– If your Tahoe is stock (no lift), you’ll need OEM-style shocks.
– If you have a 7-8 inch lift, you must use extended-length shocks optimized for this height.
Why Are Rear Shocks So Important?
Rear shocks (technically known as shock absorbers) do far more than smooth out bumps. They’re crucial for:
- Stability: Minimizing excessive bounce or sway, especially when cornering or during sudden maneuvers.
- Ride Comfort: Absorbing jolts and keeping your drive smooth.
- Tire Life: Preventing uneven wear by maintaining proper tire contact with the road.
- Braking Performance: Reducing the risk of nose-dive during hard braking.
Worn or incorrect shocks (like using short ones for a lifted Tahoe) can lead to poor handling, rough rides, and potentially unsafe conditions.
Choosing the Right Rear Shocks for Your 2017 Chevy Tahoe LT 4WD
1. Identify Your Suspension Height
- Stock Height: Use factory-fit shocks.
- Lifted (7-8 inches): Seek out shocks specifically rated for your lift height.
2. Know Your Driving Style and Vehicle Use
- Daily Driving/Commuting: Standard gas or oil-filled shocks offer a good balance of comfort and control.
- Towing/Heavy Loads: Heavy-duty shocks or air-assist shocks provide better load-leveling and control.
- Off-Road/Performance: Performance shocks (e.g., monotube, remote reservoir) are ideal for rough terrain.
3. Check Compatibility and Features
When shopping for rear shocks, look for:
- Correct fitment for your year, make, and model.
- Compatibility with your specific lift kit (if installed).
- Features like adjustable damping or heavy-duty construction if you need more control or strength.
Popular Brands: Choices abound—ACDelco, Monroe, Bilstein, KYB, Rancho, and Fox are all respected options.
Step-by-Step: How to Replace Rear Shocks on a 2017 Chevy Tahoe LT 4WD
Replacing your rear shocks isn’t as daunting as it may seem. With basic hand tools and a bit of patience, it’s a doable weekend project.
Tools & Supplies Needed
- Set of new rear shocks (matched to your Tahoe’s lift)
- Jack and jack stands
- Lug wrench
- Socket and wrench set
- Safety gloves and glasses
- Penetrating oil (for stubborn bolts)
- Torque wrench
Step-by-Step Procedure
- Safety First:
- Park on a level surface and apply the parking brake.
-
Wear safety equipment.
-
Lift the Vehicle:
- Loosen the rear wheels’ lug nuts.
-
Jack up the rear end and securely place on jack stands.
-
Remove the Rear Wheels:
-
Completely remove both rear wheels for better access.
-
Locate and Remove Old Shocks:
- Spray mounting bolts with penetrating oil if rusty.
- Unbolt the lower and upper shock mounts.
-
Slide out the old shock.
-
Install the New Rear Shock:
- Position the new shock in place.
- Loosely thread bolts by hand to avoid cross-threading.
-
Tighten bolts to manufacturer’s torque specifications.
-
Reinstall Wheels and Lower Vehicle:
-
Mount the wheels, torque the lugs, and lower the Tahoe.
-
Test Drive:
- Drive carefully to ensure everything feels correct—no knocks, rattles, or excessive bounce.
Tip: Replace both rear shocks at the same time. This ensures balanced performance and extends tire and suspension life.
Benefits of Installing the Right Rear Shocks
- Superior Ride Quality: Modern shocks reduce harshness for you and your passengers.
- Better Off-Roading: High-lift or performance shocks enable more travel and control on trails.
- Safer Towing: Reduce squat and sway when hauling trailers.
- Protection for Suspension Components: Prevents premature wear on springs, bushings, and other parts.
Common Challenges (and How to Overcome Them)
1. Seized or Rusted Bolts:
Older factory shocks might have rusted mounting hardware.
– Use plenty of penetrating oil.
– Try both tightening and loosening motions to break the rust’s grip.
2. Wrong Shock Length:
If the shock is too short or too long, it won’t mount correctly or could damage your suspension.
– Always double-check lift height and shock specifications before buying.
3. Mixing Shock Brands or Types:
Avoid installing mismatched shocks (e.g., a heavy-duty shock on one side and a standard on the other).
– Always install shocks as a matched pair.
4. Not Torquing Bolts Properly:
Loose hardware can squeak or come apart; overtightening may strip threads.
– Use a torque wrench and follow the manufacturer’s recommendations.
Practical Tips and Best Practices
- Inspect Urethane Bushings: When changing shocks, also check the bushings for cracks or excessive wear.
- Check for Leaks: Oil or residue near a shock means it’s time for replacement.
- Upgrade When Towing: Consider heavy-duty or adjustable shocks if you regularly tow with your Tahoe.
- Regular Inspection: Look under your Tahoe every 12,000–15,000 miles or once a year.
- Professional Alignment: After any suspension work or lift, have your vehicle’s alignment checked.
Cost Tips and Shopping Advice
- Online vs Local Stores: Online automotive retailers often offer discounts, but factor in shipping costs. Sometimes, in-store pickup or local auto parts stores can save you time and money, especially if you need a warranty exchange.
- OEM vs Aftermarket: OEM shocks ensure a direct fit and factory ride, but quality aftermarket brands often provide equal or better performance at a lower price.
- Bundle Purchases: Some sellers offer pairs or kits (front and rear) at reduced rates.
- Watch for Rebates: Keep an eye out for manufacturer promotions on shocks.
- Shipping for Large Parts: Shocks are generally light, but longer or heavy-duty models may incur extra shipping fees for remote areas—plan your purchase to save on costs.
Summary
Choosing the right rear shock absorbers for your 2017 Chevy Tahoe LT four-wheel drive—especially when dealing with a 7 to 8-inch lift—is crucial for maintaining safety, comfort, and durability. Always match your shocks to your vehicle’s lift, usage, and driving conditions. DIY replacement is achievable for most owners, but never hesitate to consult a professional if you’re unsure. With the right shocks, your Tahoe will handle better, ride smoother, and be ready for many miles ahead.
Frequently Asked Questions (FAQs)
1. Can I use stock shocks on my lifted 2017 Chevy Tahoe LT 4WD?
No. If your Tahoe has a 7-8 inch lift, you must use extended-length shocks designed for that lift. Stock shocks are too short and will limit suspension travel, potentially causing damage.
2. How do I know if my rear shocks need to be replaced?
Look for symptoms such as excessive bouncing, poor handling, uneven tire wear, visible fluid leaks from the shock body, or a clunking noise over bumps.
3. Is it difficult to replace rear shocks at home?
For those comfortable with basic hand tools and safety procedures, replacing rear shocks is a mid-level DIY project. It’s easier with a helper and proper tools. Always follow safety precautions and instructions.
4. How long do rear shocks typically last on a Chevy Tahoe?
OE shocks often last between 50,000 and 100,000 miles, depending on road conditions, driving habits, and load. Lifted vehicles or those driven off-road may require more frequent replacement.
5. What happens if I only replace one rear shock instead of both?
Replacing only one shock can lead to unbalanced handling and premature wear of the new shock. For best performance and safety, always replace shocks in pairs (both rear shocks at the same time).
With the right know-how and preparation, you can ensure your 2017 Chevy Tahoe LT 4WD delivers a smooth, safe, and enjoyable ride—on any road, at any height.