A strong G-body suspension kit should match your car’s model years and suspension goals, whether you want adjustable coilovers or a complete air ride system. Aldan American Front & Rear Coilover Kit is a well-rounded choice for owners of listed 1978–1988 G-body models who want front and rear ride-height adjustment. The six options here are not interchangeable: some cover both ends of the car, one is a rear-only conversion, one is an air suspension package, and the QA1 drag kit targets earlier 1969–1972 applications.
Check the stated fitment and included components before choosing, especially if your car has aftermarket control arms or a specific wheel setup. The comparison below highlights those distinctions so you can narrow the list to a kit suited to your build.
Aldan American Front & Rear Coilover Kit leads for buyers seeking a conventional, adjustable front-and-rear setup for a broad range of listed G-body models. Its stated fitment covers 1978–1988 Grand National, Regal, Malibu, Monte Carlo, El Camino, Caballero, and Cutlass models, plus certain 1978–1987 442 and Grand Prix vehicles. It is compatible with factory and aftermarket control arms and offers front and rear ride-height adjustment.
Choose airmaxxx Complete Air Ride instead if you specifically want a complete air system with FBSS control and an 8-gallon tank.
Our Top Picks
Best OverallCovers front and rear on listed 1978–1988 G-body models, supports factory and aftermarket control arms, and provides adjustable ride height.
View on Amazon
Best Complete Air RideA complete 1982–1988 G-body air system includes eight 1/2-inch valves, dual 580 compressors, an 8-gallon tank, and FBSS control.
View on Amazon
Best Spring-Rate DetailsFizzvex Coilover Conversion Kit
Its 1978–1988 G-body listing specifies adjustable nitrogen-charged coilovers and gives a 500-pound front and 250–300-pound rear spring-rate range.
View on Amazon- Best Rear-Only Conversion QA1 Rear Coil-Over Kit
Compare G-Body Suspension Kit Options
| # | Product | Weight | Buy |
|---|---|---|---|
| 1 | 1. Aldan American Coilover KitBest Overall | 50 lb | View on Amazon |
| 2 | 2. airmaxxx Complete Air RideBest Complete Air Ride | — | View on Amazon |
| 3 | 3. Fizzvex Coilover Conversion KitBest Spring-Rate Details | 50.9 lb | View on Amazon |
| 4 |  4. QA1 Rear Coil-Over KitBest Rear-Only Conversion | 24.1 lb | View on Amazon |
| 5 |  5. NEWZQ Coilover Conversion KitSpring-Rate-Specified G-Body Kit | — | View on Amazon |
| 6 |  6. QA1 DK31-GMG2 Drag KitEarly G-Body Drag Builds | 25.8 lb | View on Amazon |
Detailed Reviews: Best G Body Suspension Kit
#1 · Best Overall
1. Aldan American Coilover Kit
- Weight: 50 lb
Best for: Adjustable Full-Car Ride Height.
Why it ranks #1: Covers front and rear on listed 1978–1988 G-body models, supports factory and aftermarket control arms, and provides adjustable ride height.
Aldan American’s front-and-rear coilover kit offers separate ride-height adjustment ranges for 1978–1988 G-body applications, enabling owners to tune the stance at both ends. Its listed compatibility spans Grand National, Regal, Malibu, Monte Carlo, El Camino, Caballero, and Cutlass models, as well as specified 1978–1987 442 and Grand Prix vehicles.
The stated adjustment allows 0–2 inches of lowering at the front and 0–3 inches at the rear, giving buyers independent range to set the car’s overall stance. Compatibility with factory and aftermarket control arms offers flexibility when pairing the kit with either type of arm. Since the package is identified as a front-and-rear coilover kit for small-block G-bodies, it is aimed at a full-car conversion rather than a rear-only height change.
- Front and rear coilover kit
- Front ride-height range lowers 0–2 inches
- Rear ride-height range lowers 0–3 inches
- Compatible with factory and aftermarket control arms
- The listed fitment does not include G-body applications outside its specified model years.
Skip it if you need a kit explicitly listed for 1969–1972 G-bodies; this one is specified for later model years.
This is a fit for owners of listed 1978–1988 G-body models who want adjustable coilovers at both ends and control-arm compatibility. Check that your model year falls within its stated fitment before choosing it.
Full product details
| Brand | Aldan American |
|---|---|
| Compatible with Vehicle Type | Car |
| Included Components | Aldan 300106 Coil-Over Kit, GM |
| Item Weight | 50 pounds |
| Manufacturer | Aldan American Shocks |
| Part Number | 300106 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material | Aluminum |
| Model Number | 300106 |
| Style | Modern |
| Style Name | Modern |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Aldan American Front & Rear Coilover Kit for 78-88 GM G-Body Small Block
View on Amazon#2 · Best Complete Air Ride
2. airmaxxx Complete Air Ride
Best for: Fast-Response G-Body Air Ride.
Why it ranks #2: A complete 1982–1988 G-body air system includes eight 1/2-inch valves, dual 580 compressors, an 8-gallon tank, and FBSS control.
airmaxxx’s kit pairs eight 1/2-inch brass valves with an 8-gallon tank for FBSS air-suspension control on 1982–1988 G-bodies. The listed front, back, and side-to-side control enables adjustments across multiple sections, while dual chrome 580 compressors are specified to supply the system.
The eight 1/2-inch valves are listed for fast inflate and deflate performance, supporting responsive FBSS control for the front, back, and side-to-side. An 8-gallon, nine-port steel tank stores air for system pressure and recovery, while the dual 580 compressors are rated at 200 PSI and include a dual wiring harness and pressure switch. The direct-fit application names Monte Carlo, Cutlass, Regal, Grand Prix, and Malibu models from 1982–1988.
- FBSS front, back, and side-to-side control
- Eight 1/2-inch brass valves
- 8-gallon steel tank with nine ports
- Dual 200 PSI compressors with wiring harness and pressure switch
- The listed electrical specification is 100 volts, which may not suit every installation power setup.
Skip it if you want a mechanical coilover conversion rather than air control; Fizzvex’s adjustable street coilover kit is listed for 1978–1988 G-bodies.
This suits an owner of a listed 1982–1988 G-body seeking multi-section air-ride adjustment and a complete tank, valve, and compressor package. Account for the stated 100-volt specification when planning the installation.
Full product details
| Brand | airmaxxx |
|---|---|
| Capacity | 8 gallons |
| Color | Black |
| Included Components | Filters |
| Manufacturer | airmaxxx |
| Manufacturer Warranty Description | 1 Year |
| Model | airmaxxx Complete |
| Model Number | KC1073-580C2-812-89-7TBK-WK-HF |
| Recommended Uses | air suspension |
| Special Feature | Quick Inflation |
| Style | Portable |
| Voltage | 100 volts |
| Additional Information | Important Information Bulb Voltage 100 volts |
Listed on Amazon as: Complete 1/2" Fast Valve Air Ride Suspension Kit w/8 Gallon Tank For 1982-88 G-Body
View on Amazon#3 · Best Spring-Rate Details
3. Fizzvex Coilover Conversion Kit
- Weight: 50.9 lb
Best for: Adjustable Street Coilover Conversion.
Why it ranks #3: Its 1978–1988 G-body listing specifies adjustable nitrogen-charged coilovers and gives a 500-pound front and 250–300-pound rear spring-rate range.
Fizzvex’s coilover conversion pairs a 500-pound front spring rate with a 250–300-pound rear rate for 1978–1988 GM G-bodies. That front-and-rear spring specification helps buyers compare the kit’s setup across both ends, while its adjustable, nitrogen-charged shocks are identified for performance-street valving.
The stated 500-pound front and 250–300-pound rear spring rates give buyers concrete setup information for evaluating this conversion against their G-body application. Adjustable shocks allow adjustment, and nitrogen charging is part of the listed specification. With front and rear placement specified for 1978–1988 GM G-bodies, the kit is presented as a conversion for both ends rather than a single-axle upgrade. The listing identifies performance-street valving, not a drag-only setup.
- Front spring rate listed as 500 pounds
- Rear spring rate listed as 250–300 pounds
- Adjustable shocks
- Nitrogen-charged, performance-street valving
- The supplied fitment is limited to 1978–1988 GM G-bodies.
Skip it if you have a 1969–1972 G-body; QA1 DK31-GMG2 is the listed drag-kit option for that earlier fitment.
Choose this conversion if you want an adjustable, nitrogen-charged front-and-rear coilover setup for a 1978–1988 GM G-body. Its performance-street valving and stated spring rates are relevant boundaries when comparing suspension goals.
Full product details
| Brand | Fizzvex |
|---|---|
| Item Weight | 50.9 pounds |
| Item model number | 1978-1988 Coilover Conversion Kit |
| Manufacturer | Fizzvex |
| Part Number | 1978-1988 Coilover Conversion Kit |
| Model | Front Rear Coilover Conversion Kit |
| Package Dimensions | 21 x 19 x 7.5 inches |
Listed on Amazon as: Complete Coilover Conversion Kit Replacement for GM G-Body SBC 1978-1988. 500lbs Front 300lbs Rear
View on Amazon#4 · Best Rear-Only Conversion
4. QA1 Rear Coil-Over Kit
- Weight: 24.1 lb
Best for: QA1 Rear Ride-Height Tuning.
Why it ranks #4: For 1978–1988 G-bodies with the QA1 Big Wheel Kit, this rear pair offers single-adjustable shocks and height adjustment from above to below stock.
QA1’s rear coil-over conversion combines ride-height adjustment with single-adjustable shocks that change rebound and compression valving together. For compatible 1978–1988 G-bodies using the QA1 Big Wheel Kit, that pairing lets owners tune rear stance while adjusting shock response through one setting.
The rear-only configuration makes this a focused option for changing the back of a G-body without replacing the front suspension as part of this package. Its adjustable height supports stance changes, while the single-adjustable shocks alter rebound and compression valving simultaneously, offering one combined adjustment rather than separate controls. The stated compatibility specifies a QA1 Big Wheel Kit, so the wheel-kit requirement is a key fit consideration before planning the conversion.
- Rear coil-over conversion for 1978–1988 G-bodies
- Ride height is adjustable
- Single-adjustable shocks change rebound and compression valving together
- Specified for use with QA1 Big Wheel Kit
- This is a rear-only conversion, not a complete front-and-rear coilover kit.
Skip it if you need front and rear coilovers in one package; Aldan American’s 300106 kit is listed for both ends.
This suits a 1978–1988 G-body owner seeking rear ride-height and shock-response adjustment with the QA1 Big Wheel Kit. It is not a full-car conversion, so plan separately for any front suspension changes.
Full product details
| Brand | QA1 |
|---|---|
| Compatible with Vehicle Type | Car |
| Included Components | Per Item Description |
| Item Weight | 24.1 pounds |
| Manufacturer | QA1 |
| Part Number | RCK52366 |
| Manufacturer Warranty Description | 30 Days |
| Model Number | 122-RCK52366 |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: QA1 Rear Coil-Over Conversion Kit for 1978-1988 Compatible with GM G-Body w/QA1 Big Wheel Kit [Single-Adjustable Shocks]
View on Amazon#5
5. NEWZQ Coilover Conversion Kit
Best for: Spring-Rate-Specified G-Body Kit.
Why it ranks #5: Lists 1978–1988 G-body fitment, adjustable nitrogen-charged coilovers, a 500-pound front spring, and a 300-pound rear spring.
NEWZQ’s conversion lists a 500-pound front spring rate and a 250–300-pound rear rate for 1978–1988 GM G-bodies, with 10-inch front coils. Those figures give buyers specific spring and coil dimensions to assess, while the adjustable, nitrogen-charged setup is described as a front-and-rear conversion.
The 10-inch front coil height and listed 2.5-inch lower and 4.1-inch upper inner diameters provide concrete front-coil dimensions for checking the setup against a build. A 500-pound front rate and 250–300-pound rear rate help distinguish the spring specification across the car. The kit is adjustable and nitrogen charged, with polished steel shocks listed. Its stated 1978–1988 G-body fitment keeps the application focused on those model years.
- 500-pound front spring rate
- 250–300-pound rear spring rate
- 10-inch front coil height with listed inner diameters
- Adjustable, nitrogen-charged polished steel shocks
- The listing specifies a 10-inch front coil, so builds requiring a different front coil height are not addressed.
Skip it if you need a front coil height other than the listed 10 inches; the supplied specifications do not describe another height option.
This suits a 1978–1988 GM G-body owner comparing spring rates and front-coil dimensions for a conversion. Its 10-inch front coil specification is an important boundary; check that dimension against your intended setup.
Full product details
| Brand | NEWZQ |
|---|---|
| Item model number | Coilover Conversion Set 1978-1988 |
| Manufacturer | NEWZQ |
| Part Number | Coilover Conversion Set 1978-1988 |
| Model | 500lbs Front 300lbs Rear Coilover Conversion Set |
Listed on Amazon as: Coilover Conversion Kit Replacement for GM G-Body SBC 1978-1988
View on Amazon#6
6. QA1 DK31-GMG2 Drag Kit
- Weight: 25.8 lb
Best for: Early G-Body Drag Builds.
Why it ranks #6: A drag-oriented option for 1969–1972 G-body applications, it does not match the later 1978–1988 fitment stated by most kits here.
QA1’s Drag Kit 2.0 Level 1 is specified for 1969–1972 G-body applications, including Grand Prix and Monte Carlo. Its drag-suspension focus gives owners of those earlier cars a kit option identified for that use, while the listing’s explicit without-shocks configuration helps clarify what this package does—and does not—include.
The GMG2 compatibility and 1969–1972 G-body fitment make this a targeted choice for owners of the listed early applications rather than later 1978–1988 cars. Its Level 1 Drag Kit 2.0 designation identifies the package as a drag-oriented suspension kit. Because the title specifies that shocks are not included, buyers should account for that when planning a suspension refresh or installation; the supplied information does not describe the kit’s individual components or adjustment range.
- Specified for 1969–1972 G-body applications
- Identifies Grand Prix and Monte Carlo compatibility
- Drag Kit 2.0, Level 1 designation
- Clearly listed without shocks
- Shocks are not included, so this is not a complete shock-and-suspension package.
Skip it if you need shocks in the same package; this kit is explicitly listed without them, so consider another complete suspension setup.
This suits an owner building a drag-oriented suspension around a listed 1969–1972 G-body Grand Prix or Monte Carlo. Choose it only if a kit without shocks fits your parts plan; the listing does not detail the included components.
Full product details
| Brand | QA1 |
|---|---|
| Included Components | Per Item Description |
| Item Weight | 25.8 pounds |
| Manufacturer | QA1 |
| Part Number | DK31-GMG2 |
| Manufacturer Warranty Description | 30 Days |
| Model Number | 122-DK31-GMG2 |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: QA1 DK31-GMG2 Drag Kit 2.0, Level 1, 69-72 G-Body, W/O Shocks
View on AmazonCheck the fitment era before comparing kit features
The first compatibility check is the exact model year range, because these listings do not cover one shared G-body application. Aldan American Coilover Kit lists several 1978–1988 models, while airmaxxx Complete Air Ride specifies 1982–QA1 Rear Coil-Over Kit is listed for 1978–1988 cars with the QA1 Big Wheel Kit, and QA1 DK31-GMG2 Drag Kit targets 1969–1972 G-body applications.
A broad label such as G-body is not enough to confirm that every component will suit a particular car. Also verify engine and suspension configuration: Fizzvex Coilover Conversion Kit and NEWZQ Coilover Conversion Kit describe SBC applications, with NEWZQ also specifying SBC/LSX in its front spring-rate details.
Before ordering, compare the listing’s exact fitment against your vehicle and any existing suspension or wheel changes; the supplied product details do not establish universal interchangeability.
A complete kit does not mean the same thing in every listing
The included system can vary substantially, so confirm whether a listing supplies the type of suspension you actually plan to use. airmaxxx Complete Air Ride explicitly describes an air setup with compressors, tank, valves, and FBSS control; it is not a coilover conversion. Aldan American Coilover Kit is a front-and-rear coilover kit, while QA1 Rear Coil-Over Kit is explicitly a rear conversion sold as a pair and requires a QA1 Big Wheel Kit fitment.
QA1 DK31-GMG2 Drag Kit states that shocks are not included, an important omission if you expect a complete shock-and-spring package. The Fizzvex and NEWZQ listings describe front and rear coilover conversion sets, but the supplied data does not enumerate every installation component.
Check the package contents and any required companion parts against your build before treating two kits with similar names as equivalent.
How to Choose a G-Body Suspension Kit
Vehicle fitment and configuration
Start by matching the kit’s stated year range and vehicle configuration to your car. Aldan American Coilover Kit lists 1978–1988 Grand National, Regal, Malibu, Monte Carlo, El Camino, Caballero, and Cutlass fitment, plus certain 442 and Grand Prix models; it also supports factory and aftermarket control arms. airmaxxx Complete Air Ride lists 1982–1988 G-body models, while QA1 DK31-GMG2 Drag Kit is for 1969–1972 applications.
Fizzvex Coilover Conversion Kit and NEWZQ Coilover Conversion Kit specify SBC-related applications. Buyers with a later, commonly listed G-body should focus on kits whose stated range includes their exact car; earlier drag builds should consider the narrower QA1 application and verify fitment carefully.
Suspension type and coverage
Choose the suspension type and axle coverage that match the job before comparing other details. Aldan American Coilover Kit covers front and rear, while QA1 Rear Coil-Over Kit is a rear-only conversion listed for vehicles with the QA1 Big Wheel Kit. airmaxxx Complete Air Ride is a complete air system with FBSS control, an 8-gallon tank, and dual compressors; it differs fundamentally from fixed coil springs and shocks.
Fizzvex Coilover Conversion Kit and NEWZQ Coilover Conversion Kit describe front-and-rear coilover conversions. Buyers planning to replace both ends with coilovers should favor the front-and-rear listings; an owner addressing only the rear may prefer the dedicated QA1 option, while air-adjustment goals point toward the air ride package.
Adjustment and spring-rate details
Look for adjustment and spring-rate information that suits your intended setup, rather than assuming every coilover has identical tuning. Fizzvex Coilover Conversion Kit lists a 500-pound front spring and a 250–300-pound rear rate; NEWZQ Coilover Conversion Kit specifies 500 pounds in front and 300 pounds in the rear. Aldan American Coilover Kit states front and rear ride-height adjustment, with its front lowering range listed as 0–2 inches and rear as 0–3 inches.
QA1 Rear Coil-Over Kit gives a ride-height range above and below stock and single-adjustable shocks. Buyers who need published spring-rate figures can compare Fizzvex and NEWZQ directly; those prioritizing ride-height choice can weigh Aldan’s stated ranges or the QA1 rear kit’s adjustment description.
Which G-Body Suspension Kit Should You Choose?
For a front-and-rear coilover setup with broad stated fitment, choose Aldan American Coilover Kit: it covers many 1978–1988 G-body models and works with factory or aftermarket control arms. If your priority is air suspension and a package listing compressors, valves, tank, and FBSS control, choose airmaxxx Complete Air Ride, while confirming your car falls within its 1982–1988 range. Fizzvex Coilover Conversion Kit suits buyers who want a front-and-rear conversion with stated spring-rate details.
Choose QA1 Rear Coil-Over Kit only if a rear-only setup and its QA1 Big Wheel Kit fitment match your needs. NEWZQ Coilover Conversion Kit is another listed SBC-oriented conversion.
For an earlier drag application, QA1 DK31-GMG2 Drag Kit targets 1969–1972 cars, but does not include shocks.
Related Buying Guides
Frequently Asked Questions
Will a G-body suspension kit fit my car if it has aftermarket control arms or other modifications?
It depends on the specific kit and your vehicle. The Aldan American kit is stated to work with factory and aftermarket control arms, but that does not establish compatibility for every listed option or other modifications. Check the kit’s fitment details against your exact car and setup before ordering.
Should I choose coilovers or air suspension for my G-body’s intended use?
Choose coilovers if you want a conventional front-and-rear setup with ride-height adjustment, as offered by the Aldan American kit. Choose the airmaxxx system if you specifically want air suspension with FBSS control and an 8-gallon tank. Confirm the air system’s stated 1982–1988 range matches your car.
What else should I verify before installing a G-body suspension conversion kit?
Verify the kit’s stated year and vehicle fitment, whether it covers the front, rear, or both, and whether it requires compatible components. Check the product details for included parts and any exclusions; the QA1 DK31-GMG2 drag kit, for example, is listed without shocks. Follow the applicable installation instructions.
What is included with the airmaxxx complete air ride option?
The supplied information identifies it as a complete air ride system with FBSS control and an 8-gallon tank. The editorial verdict also describes its package as listing compressors and valves. Confirm the product listing’s included components and verify that your vehicle falls within its stated 1982–1988 range.
Is the QA1 rear coil-over kit a front-and-rear suspension solution?
No. It is identified as a rear coil-over conversion kit, and its stated fitment is tied to the QA1 Big Wheel Kit. Choose it only if a rear-only setup meets your needs and that fitment applies to your vehicle; the Aldan American option is the listed front-and-rear coilover choice.
Final Words
For a conventional, adjustable front-and-rear setup across many listed G-body models, the Aldan American kit is the lead choice, including for cars with factory or aftermarket control arms. Pick airmaxxx instead when a complete air system with FBSS control is the priority, after checking its year range. The other options address narrower needs: spring-rate details, SBC-oriented conversion, rear-only fitment, or an earlier drag application without shocks.
