Kit Includes: (1) Rear Passenger Side Shock Absorber (1) Rear Driver Side Shock Absorber
Specification
Side Location
Driver & Passenger Side
Location
Rear
Our direct fit gas-charged strut assemblies help to restore your vehicle’s handling and ride quality to just like new.
Item Condition:New
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This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
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How To Replace Rear Shock Absorbers 2002-09 Chevy Trailblazer
How to Replace Shock Absorber 2002-06 GMC Envoy XL
Created on:
Tools used
Socket Extensions
18mm Wrench
Jack Stands
18mm Socket
Ratchet
Floor Jack
1/2 Inch Breaker Bar
1. Remove the shock absorber
It is recommended to raise and secure the vehicle, but it is possible to do this with the vehicle on the ground.
Remove the 18 mm bolts at each of the strut by securing one end of the bolt with the wrench and use the socket and ratchet to remove the bolt from the nut.
2. install the new shock
Insert the shock into its mount and thread the bolt though.
Repeat with the bottom end of the strut.
Tighten the nut and bolts with your socket and ratchet and wrench
Brought to you by 1AAuto.com, your source for quality replacement parts, and the best service on the Internet. In this video, we're going to show you rear shock removal and replacement on this 2004 Trail Blazer, same as most of these mid-size SUVs. Tools you'll need are 18 mm socket with a ratchet and extension, and also an 18 mm wrench, and you probably would want jack and jack stands to raise and support the vehicle, but not totally necessary.
So to replace your rear shocks, as you can see I still have the tire on the truck, and you could actually do this on the ground, although it will cause a little clearance issue as you try and remove this lower bolt. But it's possible, you can do it on the ground. So there's that lower bolt, and there's a bolt up high right there. And if you are jacking your vehicle up, you can see my lift is under the frame. And then I have a bottle jack right here that's supporting the axle. You just want to give a little support of the axle so it doesn't drop down when you release the shock. What you probably want to do is take a couple extensions, that way you can work right outside your tire. And it'll come right apart, as you can see.
This is an 18mm again, and you might need two wrenches. One for here, and one to hold. But little trick... if all you have is wrenches, hook another wrench onto the end of that one, and that gives you some extra leverage. And like I said, on the ground this is going to be somewhat more difficult. Now I'm going to cheat 'cause I've got 18mm deep socket and an impact wrench. Comes right out. Back up top here. So that's how your shock comes out. Again, the shocks on this vehicle are fine. Just showing you how to do it. So to reinstall it, you want to put the top back up in. Put this top bolt in first. Now the bottom. Put that back in. Start that nut on. A good rule of thumb for these is get it about as tight as you can get it with a ratchet like that. And up to the top here. Again, just got my ratchet on here. That's tight as I can get it with the ratchet.
We hope this helps you out. Brought to you by www.1AAuto.com, 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 used
Socket Extensions
18mm Wrench
Jack Stands
18mm Socket
Ratchet
Floor Jack
1. Removing the Shock
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. Installing the New Shock
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
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
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 1AAuto.com. 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 1AAuto.com, 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 www.1AAuto.com, 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.
SBA60143
In Stock
Product Reviews
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4.73/ 5.022
22 reviews
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Rear shocks
Stephen
October 21, 2017
Bought rear shocks to install at same time I put in rear Airsprings on my Rainier. Wow, another easy and painless job because of the parts, videos and support from 1Aauto. Thanks again.
Just so you know... back when I was still able to work, we had a saying in the building industry.....Price, Quality or Service - Pick two. I can tell you with 1Aauto, you will get all 3 without question every time!!!
Thanks to everyone at 1Aauto. With your help, your keeping my Buick on the road and my middle schooler in class.
Good shocks
Anthony
February 3, 2018
I bought these for my son's 04 envoy to replace the stick ones. They work well. He said they ride good. They were nice made especially considering what they cost.
Seem to be good.
J
April 9, 2018
Time will tell, but they seem to be good. Rides great now.
ryan
March 9, 2019
Perfect fit!
2005 trailblazer rear shocks
Timothy
April 7, 2019
I watched the video for replacement of these shocks. Ordered them, and they came in 2 days. I replaced them in half an hour because I watched the video. They fit perfectly and work great. I have bought parts many times from 1aauto, and they have always fit perfectly and the prices and delivery are great.
Rear shock replacement
Mark
April 7, 2019
Fits just like OEM.
Francis
October 18, 2019
Will use 1A again.
Satisfied
Cody
November 11, 2019
I am totally happy with my purchase. I would recommend 1Aauto to anyone. Thank you for making parts more affordable to do it yourselfers.
Easy repair
michael
March 15, 2020
Replaced a few components of my rear suspension. These shocks seemed to be a better quality than what I took off. I didnt know how bad my suspension was until I took the 30 minutes to install these. Will buy again if the time comes.
Waclaw
June 24, 2020
Easy to install
Quality parts
Perfect replacement
Ryan
September 13, 2020
My old shocks were sagging and these new ones put the stiffness back in my ride.. perfect fit fast shipping. Always recommend a1auto to all my friends
Serious oil leaking after 8000 miles
Michael
September 21, 2020
Put these and new springs on my 2005 envoy in Sept 2019, and they felt great and improved the ride significantly, but after 8000 miles they are covered in oil and getting soft. If you plan on keeping the vehicle, opt for a better replacement.
Great product
Sean
May 4, 2021
when I changed them out these ones were three times better than the original ones that were on there
Easy to install, but leaks.
Cody
June 9, 2021
I purchased the full 4 piece set, fronts and rear. Installed rear. Then front after a few months. With less then 40k miles, one rear strut starting leaking. So time to change again.
I highly recommend 1AAUTO
Ronald
June 21, 2021
These shocks are a perfect fit, well made and very inexpensive!
I highly recommend 1AAUTO as I have used their parts often, with great success.
Emmanuel
November 4, 2021
Theyre perfect
Jerry
December 21, 2021
Parts arrived as promised and easily installed. Thanks
1 A auto is that, 1st. In quality and service
Lewis
February 8, 2022
I have bought auto parts before on many occasions and have always been satisfied with the quality and shipping. I have never had any problems when it came to the installation everything fit great. I A auto is always my first choice.
Robert
January 14, 2023
Fit right on more well constructed than the original ones
Great shock replacements!
Luis
May 31, 2023
Great shock replacement and fixed my issues with the 05 trailblazer hopping on bumps and pot holes.
Rear suspension
Paul
August 17, 2023
Worked great
Nice
darrell
September 26, 2024
Perfect!!!!! Easy install very good quality! Couldn't be happier with my purchase ??
Customer Q&A
Are these the correct shocks that pair with the air self leveling rear end on my 2007 SS3 Trailblazer? (I just purchased new air bags from this site to replace on same vehicle)May 7, 2019
S O
10
Yes, I installed them on a Buick Rainier that also has airbags.
May 7, 2019
Doug H
10
This is for standard suspension and will not be able to fit for a vehicle with the self leveling suspension.
May 7, 2019
Emma F
whats the size/length of the rear shocks?July 2, 2020
Tny T
10
Thank you for your inquiry. Actual Measurements are not listed or available. Our parts are exact replacements for your vehicle's OEM parts. As long as your year, make, and model match up with our listing, these parts will directly fit and function like the originals. Please let us know if you have any other questions. Thank you!.
July 2, 2020
Adam G
Customer service
877-844-3393
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