Keep the rear hatch rising smoothly and holding steady with the Stabilus Liftgate Lift Support 3B-8506VD, a 23.23-inch gas-charged lift support with dynamic damping speed control. It installs as a direct-fit replacement for the 2002-2006 Chevrolet TrailBlazer EXT, 2002-2006 GMC TrailBlazer EXT, 2002-2006 GMC Envoy XL, and 2004-2005 GMC Envoy XUV — see the Buyer's Guide tab for engine-level details.
- Dynamic damping speed control: engineered to create a fluid opening motion with no bouncing or jerking during cycling.
- Lift-O-Mat design: a longitudinal velocity-manifold groove pressed into the tube wall lets gas flow around the piston, and the groove narrows toward the end of the stroke for a gentle, controlled stop.
- Corrosion-tested coatings: part coatings are tested to automotive standards for corrosion resistance.
- Based on the OE design to help match the original's fit, form, and function, and it installs easily with no special tools.
Over time a worn support may lose gas charge and struggle to raise or hold the liftgate open. If a failed support is the cause, this replaces it. For balanced operation, Stabilus recommends replacing supports in pairs.
Frequently Asked Questions
What vehicles does the 3B-8506VD fit?
It is a direct-fit replacement for the 2002-2006 Chevrolet TrailBlazer EXT, 2002-2006 GMC TrailBlazer EXT, 2002-2006 GMC Envoy XL, and 2004-2005 GMC Envoy XUV. Check the Buyer's Guide tab to confirm your vehicle.
How long is this lift support?
This gas-charged lift support measures 23.23 inches, matching the length listed in the manufacturer specifications for the covered applications.
What does the dynamic damping do?
The Lift-O-Mat dynamic damping controls gas flow through a velocity-manifold groove for a fluid opening motion with no bouncing or jerking, and a gentle, controlled stop at the end of the stroke.
Should I replace both supports at once?
Stabilus recommends replacing supports in pairs for best results, which helps keep the liftgate opening and holding evenly on both sides.
Are special tools needed to install it?
No. This support is based on the OE design and is easy to install, requiring no special tools.
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