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How to Replace Shock Absorber 02-06 GMC Envoy XL

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  1. step : Removing the Shock (0:49)
    • If you are raising the vehicle, support it by the frame
    • Loosen the lower 18mm nut and bolt from the shock
    • Loosen the upper 18mm bolt from the shock
    • If you have raised the vehicle, support the axle with a jack
    • Pull the bolts out of the shock
    • Pull the shock down and out
  2. step : Installing the New Shock (2:15)
    • Put the new shock into place
    • Thread the top 18mm bolt into the shock by hand
    • Push the shock up into place
    • Thread the lower 18mm bolt into the shock
    • Tighten the top 18mm bolt preliminarily
    • Fasten the 18mm nut onto the lower 18mm bolt
    • Tighten the lower 18mm nut and bolt preliminarily
    • If you raised the vehicle, lower it to the ground
    • Start the vehicle
    • Allow the air suspension to inflate
    • Check the ride height
    • Tighten the two 18mm bolts

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of Thanks.

In this video, we're going to show you how to replace the rear shocks on this 2003 GMC Envoy. It's the same procedure for all these SUVs: Envoy, trail blazer, Ascender, Ranier,. We show you the right side; the left side's the exact same procedure. Always replace your shocks in pairs, and you'll need new rear shocks from, 18mm socket and ratchet with an extension, and it helps to have a deep socket, an 18mm wrench. You can do this without even jacking up your vehicle, but for the video, to make it easier, we do put it up on a lift and use a jack.

Your rear shock is held in with an 18mm bolt up here and an 18mm bolt down here. Using an 18mm socket and ratchet, and 18mm wrench, just loosen up this lower bolt and hit it out as far as you can with the wrench. We'll fast forward as he loosens up the top bolt. You don't have to entirely remove them until you've loosened both of them. That makes it a little bit easier. If you are using jack and hack stands, have the jack stands supporting the frame of the vehicle, and then put some upward pressure on the rear axle with your jack to take some of the load off of the shock. I'm just watching the top of the shock to see it compress some. Now with the bolts loosened, you can pull the lower bolt out and then pull the top bolt out. You see that? Then it pulls free.

Up top, is the old shock. Below it, is the new one from 1A Auto. You can see they're identical, and they'll fit exactly the same. Feed your new shock up into place and replace that top bolt to hold it in place. Now, you'll need to line up the lower hole and this I only have to push up a little bit. If you have your vehicle on the ground you'll have to push it up more, push the shock up and then put the bolt through. We'll fast forward as Mike tightens those both up. Right now you're just tightening them preliminarily, although you can, if you're working without a jack and jack stands, and the vehicle's on the ground, you can tighten them up. What we do is we start up the vehicle just to give the air suspension a chance to inflate and make sure the vehicle's at its correct ride height. Then once we know it's at the correct ride height tighten up the bolts for the shocks.

We hope this video helps you out. Brought to you by, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Sockets - Metric

  • 18mm Socket

  • Wrenches - Metric

  • 18mm Wrench

2004 - 2005  GMC  Envoy XUV
2002 - 2006  GMC  Envoy XL
2002 - 2006  Chevrolet  Trailblazer EXT
2003 - 2008  Isuzu  Ascender
2004 - 2007  Buick  Rainier
2002 - 2004  Oldsmobile  Bravada
2002 - 2009  GMC  Envoy
2005 - 2009  Saab  9-7X
2002 - 2004  Chevrolet  Trailblazer
2002 - 2009  Chevrolet  Trailblazer
2003 - 2008  Chevrolet  Trailblazer
2003 - 2006  Chevrolet  SSR
2005 - 2008  Saab  9-7X
2004 - 2008  Isuzu  Ascender
2004 - 2004  Oldsmobile  Bravada
2004 - 2007  GMC  Envoy
2004 - 2006  GMC  Envoy XL
2004 - 2006  Chevrolet  Trailblazer EXT
2004 - 2007  Chevrolet  Trailblazer
2004 - 2004  Chevrolet  Trailblazer
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