BDS 6-Inch Lift Kit | FOX 2.0 Performance Series Coil-Overs | FOX 2.0 Performance Series Rear Shocks | Chevy Avalanche / Suburban / Tahoe / GMC Yukon 1500 4WD 2007–2014 | SKU: 178PSS

Verified Fitment

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Avalanche owners: confirm your model year is 2013 or earlier before ordering. The Avalanche was discontinued after 2013 — there is no 2014 Avalanche. Text (469) 407-7538 before ordering if you need help confirming your platform year or drivetrain.

GMT900 Full-Size SUV Lift Kit Shock Tier Reference

Text (469) 407-7538 to confirm lift height and shock tier before ordering.

Installation Notes

Skill Level: Advanced. A 6-inch lift on a GMT900 full-size SUV platform is a significant suspension job — more involved than the 4-inch systems in SKU 188PSS and 900PSS. These are large, heavy-platform vehicles. Proper hydraulic lifting equipment, correct torque procedures, and documented suspension shop experience on full-size SUVs are required. Do not attempt DIY installation.

Required Tools:

• Full hydraulic lift rated for full-size SUV weight
• Coil-over compression tool
• Torque wrench
• Full socket and wrench set

Alignment: Full front-end alignment is mandatory after installation. Do not operate the vehicle on public roads before alignment is completed.

Avalanche Year Confirmation: The Avalanche was discontinued after 2013. Confirm your Avalanche is a 2013 or earlier model year before ordering. There is no 2014 Avalanche.

Extended Brake Lines: Verify whether extended brake lines are required for your specific configuration at time of installation. At 6 inches of lift on a full-size SUV platform, this should be confirmed with your installer before the job begins.

Torque Specs: Follow BDS-specified torque values included in the installation instructions. Do not substitute generic torque values on a full-size SUV platform at 6-inch lift height.

Tire Fitment: At 6 inches of lift on the GMT900 SUV platform, typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specifications with your wheel and tire supplier before ordering.

The Obsidian Take

SKU 178PSS is the correct kit for the 2007–2014 GMT900 full-size SUV owner — Suburban, Tahoe, Yukon, or 2007–2013 Avalanche — who wants 6 inches of front lift with a complete FOX 2.0 Performance Series system front and rear at the standard shock tier price point. This is a full 6-inch lift system on a platform that the 4-inch kits in 188PSS and 900PSS do not address. If 6 inches is the goal and FOX 2.0 Performance Series is the correct shock tier for your budget and use case, 178PSS is the correct kit.

The decision between 178PSS and stepping up to a FOX 2.5 PE system is shock performance under load. FOX 2.0 Performance Series handles daily driving, moderate off-road, and light to moderate towing without issue. The additional 2 inches of lift versus the 4-inch FOX 2.5 PE systems also means more geometry change from factory — at 6 inches, the case for a higher-performing shock tier strengthens if you plan to use this vehicle aggressively or tow at capacity regularly. If that describes your use case, contact OFAS and we will identify the correct 6-inch FOX 2.5 PE option for this platform.

This kit is for you if: You own a 2007–2014 Suburban, Tahoe, or Yukon 1500 4WD — or a 2007–2013 Avalanche 1500 4WD — you want 6 inches of front lift with FOX 2.0 Performance Series damping front and rear, and the FOX 2.0 tier meets your use case and budget.

This kit is not for you if: You want FOX 2.5 PE damping — contact OFAS for the correct 6-inch FOX 2.5 PE option on this platform. You only want 4 inches of lift — order SKU 188PSS (2-inch body coil-over) or SKU 900PSS (3-inch body coil-over). Your vehicle is 2WD or RWD. You have a 2015 or newer Suburban, Tahoe, or Yukon. You have a Silverado or Sierra pickup — different platform. Confirm your year, model, and drivetrain before ordering — the kit is non-returnable once installed.

Common Questions

What is the difference between SKU 178PSS and SKU 188PSS or SKU 900PSS?
SKU 178PSS delivers 6 inches of front lift with FOX 2.0 Performance Series coil-overs and rear shocks. SKU 188PSS and SKU 900PSS deliver 4 inches of front lift with FOX 2.5 Performance Elite coil-overs — the difference between those two is the coil-over body diameter (2-inch vs. 3-inch). If you want 6 inches at the FOX 2.0 price point, 178PSS is the correct choice. Text (469) 407-7538 to confirm lift height and shock tier before ordering.

Does this fit the 2014 Chevy Avalanche?
No — and there is no 2014 Avalanche. The Chevy Avalanche was discontinued after the 2013 model year. If your Avalanche is a 2013 or earlier 4WD, this kit applies.

Does this fit the GMC Yukon XL?
Text (469) 407-7538 before ordering to confirm Yukon XL compatibility. Do not assume compatibility with the standard Yukon 1500 fitment.

Does this fit my 2WD Tahoe or Suburban?
No. SKU 178PSS is 4WD only. Two-wheel drive and rear-wheel drive models are not compatible.

Does this fit the 2015 Suburban or Tahoe?
No. The 2015 Suburban, Tahoe, and Yukon are a different platform generation — this kit does not apply. Text (469) 407-7538 and we will identify the correct kit for your platform year.

What size tires fit at 6-inch lift on the GMT900 SUV platform?
Typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specifications with your wheel and tire supplier before ordering.

What warranty covers this kit?
BDS suspension components are covered by the BDS No-Fine-Print Warranty. FOX 2.0 Performance Series shocks carry a FOX 1-year limited warranty.

Manufacturer Data Disclaimer: Specifications sourced from BDS Suspension product documentation and authorized distributor data. Obsidian Forged Auto Supply is an authorized BDS Suspension dealer. Manufacturer specifications are subject to change without notice.

⚠️ California Proposition 65 Warning: This product may expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information visit P65Warnings.ca.gov.

⚠️ Non-Returnable Notice: Suspension components are non-returnable once installed. Confirm model, year, and drivetrain before ordering. Text (469) 407-7538 with any fitment questions before your order is placed.