2004-2007 Buick Rainier Rear Air Suspension Conversion Kit With Shocks GB1RB
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2004-2007 Buick Rainier Rear Air Suspension Conversion Kit With Shocks GB1RB

$249.00Add to cart

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Kit Class: Premium Warranty: Lifetime Limited

Convert Your Air Suspension To A Coil Spring Suspension. End Your Air Suspension Problems Forever...

Strutmasters 2004-2007 Buick Rainier Rear Air Suspension To Conventional Suspension Conversion Kits are the perfect solution to your suspension problems. Designed to be very affordable, you can convert your factory suspension to use passive shocks and coil springs for less than the price of replacing Original Equipment air springs.

This Conversion Kit Fits

2004 Buick Rainier, 2005 Buick Rainier, 2006 Buick Rainier, 2007 Buick Rainier

Product Notes

  • For Heavy Hauling And Towing Conditions, Or If You Need A Lift Kit For Larger Wheels, Call 866-597-2397.
  • Will Not Fit Chevy SS Models. For Standard Models Only.
  • Made In USA
  • Limited Lifetime Warranty
  • Made With Glide Ride Technology


Vehicle Info

  • Year: 2004-2007
  • Make: Buick
  • Model: Rainier
  • Manufacturer: Strutmasters
  • Product Type: Rear Conversion Kit

Air Suspension Conversion Kit Includes

These are the components and materials you can expect to find shipped with your new purchase.

  • 2 Premium Rear Shock Absorbers
  • 2 Rear Eibach Springs
  • All Necessary Hardware
  • Detailed Instructions

Shipping Info

All of our products have shipping options available to guarantee you get your part in a timely and affordable manner.

  • Next Business Day: Delivery typically by 10:30 a.m.
  • 2 Business Days: Delivery typically by end of day
  • 1-5 Business Days: Delivery based on distance to destination
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Manufactured, Packaged and
Shipped in North Carolina, USA

All of our conversion kits are manufactured, packaged and shipped from our warehouse right here in Roxoboro, NC, USA. We believe in providing the highest quality parts, such as Eibach Springs, to ensure our customers only need to buy the right product once.

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Features & Benefits

Strutmasters Conversion Kits Save Money, Time and Headaches

2004-2007 Buick Rainier Rear Air Suspension Conversion Kit With Shocks GB1RB is the perfect solution to your air suspension problems. Designed to be very affordable, you can convert your air suspension to use standard.

Our Conversion Kits are built to improve the performance and stability of your ride. Converting to a non-air suspension system gives you a more reliable ride.

Our kits don't require any major modifications to your vehicle to install.

Only Strutmasters offers Premium Eibach Springs on our conversion kits. Notice the difference with a better, smoother ride!

All of our kits come with easy to install instructions so you or your mechanic can get your car up and running faster than ever.

Why Choose Strutmasters Instead Of Those Other Guys

The assorted parts that make up the air suspension system on the 2004-2007 Buick Rainier must always function in sync. When one part stops working, the system needs a repair. Strutmasters' air to non-air suspension conversion kit eliminates this inconvenient and expensive dependency. The kit, made in America, includes two cold-wound steel Eibach coil springs and two shocks for the rear end of the Rainier. The kit is installed without any modifications- it's a direct replacement. It saves time and frustration, too. The kit can be installed in as little as one hour per wheel. But it is the low price that seals the deal for most of our customers. A closer look at the cost difference between replacing a faulty air suspension system and choosing an air to non-air suspension conversion kit will shed light on considerable savings. Review three different prices: that of repairing the air suspension system with Original Equipment parts at the Buick dealership; that of installing aftermarket air suspension replacement parts on the Rainier individually; and that of installing a Strutmasters air to non-air suspension conversion kit. Keep in mind, excellent customer service is a priceless benefit. Strutmasters offers installation advice for ASE certified technicians when you have questions; and installation videos are available to view online.

How Do I know If My Rainier Air Suspension is failing?

If the 2004-2007 Buick Rainier is unable to meet and maintain its proper ride height, its air suspension system may be leaking or failed. Early diagnosis of a bad suspension system is the key to avoiding total failure. Look for a sudden three to five inch drop in the rear of the vehicle or uneven height difference between different sides of the Rainier. Left unchecked, this imbalance can wear out other vehicle components. The air compressor, for example, may have stopped working or may run too often. One final red flag is an illuminated suspension warning light on the dashboard. Any and all of these issues should be fixed promptly.


Overall Savings

How does this part compare to OEM parts and other competitive solutions?

  • $651

    in Savings

  • 72%

    Less Than Dealer

2004-2007 Buick Rainier OEM Replacement Parts:

+ Rear Air Springs ($160/spring)
+ Rear Shocks ($80/shock)
+ Air Compressor Assembly ($420)
= TOTAL: Over $900 (and that still doesn't include replacing electronic components that are known to fail such as the height sensors).

After Market Replacement Parts:

+ Air Compressor and Dryer Assembly ($110) + Rear Air Springs ($130/spring) + Rear Shocks ($40/shock) = TOTAL: Over $450 (and that still doesn’t include replacing electronic components that are known to fail such as the height sensors).

Strutmasters Conversion Kit:

+ (2) Rear Eibach coil
+ (2) Rear passive hydraulic-fluid shocks
+ Detailed installation instructions
+ Over-the-phone technical support and a Lifetime Limited Warranty

**The dealer no longer has the front coil springs for your car! We have done the research and created our own to replace your weakened springs at a fraction of what the dealer would charge you if they did have them!**

Our Price: $249.00!

Suspension Components List

The 2004-2007 Buick Rainier is built with the following suspension components:

2004-2007 Buick Rainier Air Springs (x2)- commonly referred to as air bags, a plastic and rubber bag that uses pressurized air as a cushion to support the weight of the vehicle. Taking the place of metal coil springs, the rubber factory air springs are the number one cause of all air suspension leaks. Since all rubber air springs all go bad at about the same rate, if one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time.

2004-2007 Buick Rainier Shock Absorbers (x2)- these control the wheel-to-ground contact for the rear of this vehicle. Shocks dampen the vibration and bounciness caused by rough road surfaces.

2004-2007 Buick Rainier Height Sensors (x2)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out.

2004-2007 Buick Rainier Air Lines- tubes that run from a compressor to the air which carry pressurized air to the air bags in order to adjust the height of the vehicle, respectively.

2004-2007 Buick Rainier Solenoids (x2)- these plastic components work with the aid of the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.

Compressor Assembly- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure.

2004-2007 Buick Rainier Dryer- prevents moisture build-up inside of air suspension parts.

2004-2007 Buick Rainier Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle's correct ride height.

2004-2007 Buick Rainier O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

Performance You Can’t Find Elsewhere
Made With Eibach Springs

American Made Parts,
Unrivaled Quality

Get Your Parts When You Need Them
Fast Shipping Guaranteed

Professional Assistance and ASE Certified Tech Support
Those Other Guys Don't Offer


Real Customers, Real Reviews

Read reviews from people just like you looking for the perfect solution for their suspension needs.

Name: | Location: middle island ny 11953 | SKU: GB1RB

Great ride is back, Devon’s help was great. Answered all my questions. Installation guide was on the money.

Name: | Location: Elgin, South Carolina | SKU: GB1RB

I called Strutmasters and I talked to Will. I told him the problem I was having with my Buick Rainer. The rear air bags had failed and my suspension was just about dragging the ground. Will told me what I would need. I got my conversion kit in two day. I took it to a friends shop and we installed in about 30 minutes. We took both rear tires off and both rear shocks, we then twisted the air bags half a turn, they dropped down, I cut both air lines, wire tied the height sensors in the up position, prayed down slightly on the suspension, slipped the coil springs in, put the new shocks and tires on and was done.Great fit.Thank you Will ans Strut Masters, you will get all my suspension business, and I have been telling all my friends about you.

Name: | Location: Allen Park, MI United States | SKU: GB1RB

The air-ride system was going bad on my 06 Rainier. The compressor was good but the air-bag springs were leaking. I would come out in the morning or after work and it would be sitting very low. After starting car the bags would pump up (most of the time) and i dealt with it like this for quite some time. I decided to go with the springs after rationalizing that if i put new air springs on it, the compressor would be the next to go and then the $$ would just continue to go up. Overall ride seems quite good and certainly a nice change from waiting for the bags to pump up every time i start the car. Install was really easy. I am by no means a gear head but i did most of this work myself with the my bro-in-law supervising and assisting when needed. Right tools are the biggest need. If doing this yourself jackstands are a must as you need to keep the car up on them after you remove shocks and air-springs to let the rear suspension lower out of its ride position. Overall good economical fix.

Name: | Location: Haver De Grace, MD United States | SKU: GB1RB

First and foremost the Customer Service was extraordinary and extremely knowledgeable. When I received the product I was delightfully surprised of the quality. The cost was unheard of. It was so low. Once we received it took it to the vehicles dealership and they installed it for a fraction of what it would have cost. The cost would have been $1300.00 to have them install it elsewhere. Instead the total price was $529.00. I would tell any and all the quality and service was a “10”

Name: | Location: Foristell, MO | SKU: GB1RB

“I thought you would like to learn about another success from installing your conversion kit!

This air suspension conversion kit finally eliminated the expensive and high maintenance Envoy factory air system. In less than an hour, this kit has returned the smooth factory ride (not to mention – no more low-rider, and no more noise from the air pump cycling on and off)!

Thanks you,

Dennis G.”

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