About TRQ: TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Our coil spring conversion kit is a simple and inexpensive alternative for vehicles that came equipped with a factory air suspension. Everything necessary to replace the factory air springs with metal coil springs is included and it will install and fit without any special tools or modification to the vehicle.
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 www.P65Warnings.ca.gov
This part fits
6 vehicles spanning 2002-2009.
Fits these Makes
Select vehicle
Year
Make
Model
Description
2004-2007
Buick
Rainier
Buick Rainier Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
2002-2009
Chevrolet
Trailblazer
Chevrolet Trailblazer Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
2002-2009
GMC
Envoy
GMC Envoy Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
2003-2008
Isuzu
Ascender
Isuzu Ascender with 5 Passenger Seating Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
2002-2004
Oldsmobile
Bravada
Olds Bravada Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
2005-2009
Saab
9-7X
Saab 9-7X Rear Air Bag to Coil Spring Conversion Kit TRQ SKA63001
Part Interchange
Brand Label
Part Number
DIY Solutions
SHO00839
Unity Automotive
65220c
Arnott Industries
C-2137
MOOG Chassis Products
81049
This item may be interchangeable with parts from other brands with the above part numbers.
This information is provided only for reference and does not guarantee that the item you are
purchasing is identical to parts with part numbers from the brands listed above.
To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.
Lifetime Warranty
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.
FREE Shipping is standard on orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii and Alaska.
Shipping is not available to a P.O. Box, APO/FPO/DPO addresses, US Territories, or Canada for this item.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii.
Final shipping costs are available at checkout.
Product Reviews
4.5/ 5
★★★★★★★★★★
14 reviews
5★
86%
4★
0%
3★
0%
2★
7%
1★
7%
★★★★★March 25, 2025
Great Transaction
Great Transaction, Great parts at a good price
★★★★★March 12, 2023
Quality Product At A Good Price
Replaced air springs on a 2007 Rainier. Ride height is 33 inches and looks right. The air spring ride height was a little over 33 inches. Ride quality seems to be the same. I had to disconnect the shocks to get enough clearance for the springs. I disconnected the brake line frame bracket on each side to keep from stressing the brake line too much. A quality product at a good price. Shipping time was reasonable.
★★★★★February 18, 2023
Perfect
Installed on a 2007 trailblazer SS
Vehicle sits perfectly level as it should
Much better handling than the original air ride
★★★★★June 22, 2022
Fit great!
★★★★★August 31, 2021
Fit like it was supposed to.
★★★★★December 20, 2020
2007 Trailblazer SS - Springs worked great
I installed these springs in my 2007 Trailblazer SS to replace the original air bag suspension that was leaking. These springs worked perfectly. They installed easily, and the ride quality is excellent. The height of the vehicle is also perfect with the new springs. Pretty much the same as the factory original height.
Taking the old air bag suspension out was a little more difficult that I expected. But that was because they were "rusted in". There are a lot of on line videos that show the air bags coming out very easily. But in reality, if your vehicle has rust underneath, you can plan on a bit of a struggle to get them out.
★★★★★December 18, 2020
Perfect fit!
The product was installed on 2006 Saab 97x. After installation, the rear measurement came out at 34 inches (top of wheel well to ground) which is equivalent to air spring height. Easy installation!
★★★★★November 19, 2020
Excellent Parts and Rapid Delivery
Parts delivered as advertised and fit my vehicle precisely (as advertised). Instructions for installation were easy to understand and I completed the replacement quickly. 1AAuto delivered!!
★★★★★February 10, 2020
Low in rear
Installed these in place of the air bags on my 02 Envoy. Before, I was thinking of getting a lift kit because the front sat a few inches below the rear. Now, as noted by another reviewer, the rear sits much lower than before and lower than the front. A change of at least 2-3 inches from the air bags. The ride is good, but disappointed that they are so much lower. Haven't towed with them yet, but not looking forward to that with the lower rear.
★★★★★November 16, 2019
Too low in rear
Installed these springs in place of air bags on my 07 envoy. It now sits quite a bit lower in the rear
Showing 1–10 of 14 reviews
SKA63001
In Stock
Customer Q&A
Got a question about this part? Post it and get answers from our team.
JoeSeptember 29, 2022
Where are these springs made?
These are manufactured by TRQ. TRQ is a high quality, high-end name brand that we offer and back with our 1A Auto Limited Lifetime Warranty.
T · September 29, 2022
JohnJuly 15, 2022
Which way does the springs get installed?
The tighter wound end of the coil spring goes up
Daniel · July 15, 2022
RobertoFebruary 9, 2019
Does this fit the xuv?
Thank you for your interest in 1A Auto. Please check out either 1ASSP00659 (springs and shocks) or 1ASSP00659 (just springs) if you are looking for a rear conversion kit on your 2004-2005 GMC Envoy XUV!
T · February 10, 2019
Showing 1–3 of 3 questions
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