Air Bag to Coil Spring Conversion Kit - 1ASSP00472

Warranty & Shipping
Product Reviews
Vehicle Fit


  • Air Bag to Coil Suspension Conversion Kit includes:
    • (2) - REAR Shock Absorbers - LH (Driver Side) & RH (Passenger Side)
    • (2) - REAR Conversion Coil Springs - LH (Driver Side) & RH (Passenger Side)
    • (4) - UPPER & LOWER REAR Coil Spring Seats - LH (Driver Side) & RH (Passenger Side)
  • Replaces many dealer part numbers including: 15765071, 25820699
  • No modifications necessary
  • Built to strict quality control standards
  • Correct for 113" wheel base models only

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

2 Year Warranty

This item is backed by a 2 Year Warranty. In the event this item should fail during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

4.85/ 5.0
13 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Easy fit
Order came very quick all parts were accounted for easy to install. Nothing on the down side. Springs look lite weigh weight . Time will tell.
November 28, 2017
air bag conversion with shock absorbers
Everything went to together without a hitch. Once the airbags were removed the springs and pads went right in. No straining what so ever. Took less than an hour on a lift.
December 26, 2017
Easy Install, Right Fit
The hardest part was removing the old air bag. I used a strap wrench to twist it off--one can get it from a plumbing supplier. The video was most helpful. I purchased the parts from IAAuto because they made the effort to make the video. My only criticism is the shipping was slow, but the price and fit were exceptional. I have extra vehicles, so I did not need to have the parts the next day.
December 31, 2017
Very satisfied
My air pump was weak and I had a leaking air bladder on my trailblazer ss. Saw the coil spring replacement on 1a auto. Called them to make sure it would work on my vehicle. After the rep spoke to a technical advisor I ordered it. It worked perfectly. No problems at all. And the price was less than I thought. Thanks a lot
April 25, 2018
Conversion kit
Im very pleased with the conversion kit was easy to install and the price was very reasonable I will probably get more products from A1 and would recommend them to all my friends quality products at reasonable prices my kind of place!
April 26, 2018
Satisfied Customer
Was very satisfied with my Purchase from 1Aauto. Customer service was awesome and knowledgeable and helpful. My purchase arrived in a timely manner and contained exactly what I had ordered. Have and would recommend 1Aauto to family and friends.
July 23, 2018
Great value and easy to install!
ordered kit from 1A Auto and arrived 2 days before approximate arrival date. Everything was in the package and installation was a cinch. I had never installed shocks or springs before so using 1A Autos videos helped. Great value and prompt service.
September 9, 2018
I love the parts and value at 1A auto. I would recommend them to all my family and friends. I watched the mechanic work and 1A auto parts was a perfect fit for my truck. It rides beautifully now. Thank you!!!
October 2, 2018
1A Auto is a huge money saver!
Have bought quite a few parts from 1A Auto. Never been disappointed. Always arrive on time and are exactly what was ordered. Would recommend to anyone looking for quality parts at a great price. Great how to videos also.
October 30, 2018
Envoy conversion kit
Works great after install. Easy fix to do yourself
December 10, 2018
2007 Envoy Denali - Air Suspension to Coil Suspension
Great order experience online at A-1 Auto. Parts arrive promised. Thumbs up! The price was comparable, if not cheaper, than most online stores. Installed the new parts with no issues. Noticed the new rear Springs werent level with the front of the vehicle. After further review on other websites/forums, I found that people are using Springs from a 1/2 Ton Suv, or pick up...Tahoe, Yukon, Silverado, Sierra. There are spacers you can order to achieve the 1- 2 inches of lift. Before you order, make sure you research other websites/forums. 1-A Auto has a website with tutorials on "how to" on pretty much any auto repair...thanks for doing that 1-A Auto!
December 12, 2018
Easy swap and so much cheaper than replacing the air bags
Works great easy install and best part is how cheap it is compared to replacing the air suspension. Remember all you need to do is disconnect the ride height sensors on both rear wheels that way the compressor doesnt keep running and you dont have to remove it. Another side benefit to this is the compressor can still be used to fill your tires with the trunk air hose which is a slick feature.
January 8, 2019
Went in like a charm.
Very satisfied with this part. No more wet diaper on the envoy. Car sits nice. Had the removal and instal all done in about 11/2 hours. And the local shop wanted to charge me 4 hrs labor. It’s a chain ripoff place but still.
January 13, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Is there an installation video on this product? I would feel comfortable doing this on my own with one of your intuitive how-to videos. Thanks!
Josh O January 5, 2019
At this time we do not have an installation video for this particular product.
Peter M January 5, 2019
I bought the same conversion kit for my Envoy and put it on myself me and a buddy it was pretty easy and yes they do have plenty of videos on how to show you what to do good luck
D I January 6, 2019
All you have to do is jack your truck up and put jack stands on the frame to allow the axle to drop down freely use your Jack under The rear differential then unbolt your airbags put the springs in place of airbags once that is done take your socks off and install new shocks . If you need more room to install springs undo one side with the shock so the actual can travel lower than install spring use jack to jack up Axel and install shock . If you need more information feel free to give me a shout . Thanks and good luck
G O January 7, 2019
Year Make Model Description
2004-2007Buick Rainier Buick Rainier Rear Air Bag to Coil Spring Conversion Kit
2002-2009Chevy Trailblazer Chevy Trailblazer Rear Air Bag to Coil Spring Conversion Kit
2002-2009GMC Envoy GMC Envoy Rear Air Bag to Coil Spring Conversion Kit
2003-2008Isuzu Ascender Isuzu Ascender 5 Passenger Rear Air Bag to Coil Spring Conversion Kit
2002-2004Oldsmobile Bravada Olds Bravada Rear Air Bag to Coil Spring Conversion Kit
2005-2009Saab 9-7X Saab 9-7X Rear Air Bag to Coil Spring Conversion Kit
Part #: 1ASSP00472

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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