Best Suspension Upgrade For G Body: Compare Arms, Springs and Coilovers

#1 · Best Overall

1. Fizzvex Coilover Conversion Kit

• Weight: 50.9 lb

Best for: Complete G-Body coilover converters.

Why it ranks #1: Listed for 1978–1988 GM G-body cars, this adjustable front-and-rear kit specifies 500-pound front and 250–300-pound rear spring rates.

Fizzvex lists a complete front-and-rear coilover conversion kit for 1978–1988 GM G-Body applications, enabling a matched conversion approach rather than a front-only change. Adjustable setup and nitrogen-charged shocks are specified, alongside a 500-pound front spring rate and a 250–300-pound rear rate.

The front-and-rear placement and 1978–1988 G-Body application make this a conversion option for buyers planning both ends of the car. Adjustable coilovers provide a stated setup feature, while nitrogen charging and performance-street valving describe the shocks’ specified configuration. The 500-pound front and 250–300-pound rear spring rates help buyers compare the included spring setup with their build needs; the listed 50.9-pound package weight is worth considering during handling and installation.

Skip it if you need only adjustable front coilovers; E-MOTOR lists a front pair with up to three inches of ride-height adjustment.

This is aimed at a 1978–1988 G-Body owner converting both front and rear suspension to adjustable coilovers. Consider the stated front and rear spring rates and confirm the project calls for a complete conversion.

Listed on Amazon as: Complete Coilover Conversion Kit Replacement for GM G-Body SBC 1978-1988. 500lbs Front 300lbs Rear

#2 · Best Rate Details

2. NEWZQ Coilover Conversion Kit

Best for: Adjustable SBC coilover conversions.

Why it ranks #2: The 1978–1988 G-body kit lists adjustable front and rear coilovers, 500-pound front and 250–300-pound rear rates, plus coil dimensions.

NEWZQ specifies a 500-pound front and 250–300-pound rear spring setup in its adjustable coilover conversion for 1978–1988 GM G-Bodies, giving SBC/LSX-oriented builders concrete rates to assess. The listing also supplies front coil dimensions, making spring geometry part of the selection process.

The kit’s front-and-rear conversion set pairs a 500-pound front spring with a listed 300-pound rear package component, while the broader stated rear rate is 250–300 pounds. Adjustable, nitrogen-charged shocks are specified, and the front spring is listed at 10 inches tall with 2.5-inch lower and 4.1-inch upper inner diameters. Those dimensions help buyers evaluate spring space and mounting requirements before installation.

Skip it if you need a stated 500-pound front spring but no front-and-rear conversion; E-MOTOR lists a front coilover pair.

This is for a 1978–1988 G-Body builder seeking adjustable front-and-rear coilovers and detailed front spring dimensions. Compare the stated spring rates and dimensions with the specific installation requirements of your project.

Listed on Amazon as: Coilover Conversion Kit Replacement for GM G-Body SBC 1978-1988

#3 · Best Rear Arm Set

3. UMI Performance 301417-R Arms

• Weight: 17.2 lb

Best for: Adjustable rear geometry tuners.

Why it ranks #3: For 1978–1988 GM G-body cars, it includes tubular lower control arms and adjustable upper control arms as a rear set.

UMI Performance combines tubular rear lower control arms with adjustable upper control arms for 1978–1988 GM G-Bodies, enabling buyers to address both rear arm sets with one listed kit. The supplied description identifies the arms and their adjustable upper configuration, rather than shocks or a complete suspension conversion.

The set pairs tubular lower control arms with adjustable upper control arms, so buyers sourcing both rear arm positions can work from one package description. Its specified 1978–1988 G-Body fitment makes the application boundary clear, while the adjustable uppers offer a setup element that fixed upper arms do not provide. The listing does not describe spring or shock components, so this is best treated as a rear control-arm upgrade within a broader suspension plan.

Skip it if you want springs or shocks included; Fizzvex lists a complete front-and-rear coilover conversion kit.

Choose this for a 1978–1988 GM G-Body project centered on replacing rear upper and lower control arms. It does not serve as a listed spring-and-shock package, so plan those parts separately.

Listed on Amazon as: UMI Performance 301417-R GM G-Body UMI Perf. Rear Adjustable Upper and Lower Control Arm Set – Red

#4

4. Speedway Motors Rear Control Arms

• Weight: 23 lb

Best for: Rear traction and wheel-hop upgrades.

Why it ranks #4: These rear control arms are specified for 1978–1988 GM G-body cars and include polyurethane bushings in tubular steel construction.

Tubular construction paired with polyurethane bushings defines Speedway Motors’ rear control arms for 1978–1988 GM G-Bodies, with the listing linking those features to rigidity, reduced flex, traction, and wheel-hop control. This is a focused rear-arm upgrade rather than a complete spring-and-shock package.

The tubular steel construction is described as more rigid than stock arms, with the stated aim of optimizing traction and minimizing wheel hop. Polyurethane bushings are specified to resist flexing and deflection more effectively than standard rubber, which the listing connects to suspension efficiency and responsiveness. A black painted finish is also described as corrosion resistant. Since these are rear control arms, buyers seeking a broader suspension conversion will need to plan other components separately.

Skip it if you need adjustable rear upper and lower arms together; UMI Performance lists both sets in its rear control-arm kit.

This suits a 1978–1988 G-Body owner prioritizing rear-arm rigidity, polyurethane bushings, and the listed traction benefits. It is a control-arm-focused change, so consider other suspension components separately.

Listed on Amazon as: Rear Control Arms with Bushings, For 1978-88 GM G-Body

#5 · Best Stated Drop

5. BMR SP035R Lowering Springs

• Weight: 39.8 lb

Best for: Street-friendly 1.5-inch lowering.

Why it ranks #5: The vehicle-specific kit fits 1978–1987 G-body applications and specifies a 1.5-inch drop with a linear spring rate.

BMR’s G-Body lowering spring kit specifies a 1.5-inch drop for 1978–1987 applications, giving street-performance owners a defined lowering target. Its linear spring rate is presented as a way to keep the body supported and level through corners while retaining a comfortable ride on varied roads.

The 1.5-inch drop gives buyers a clear stance change to evaluate for their G-Body, while the vehicle-specific listing limits the stated application to 1978–1987. BMR describes the spring rate as linear and fine-tuned, connecting that setup to cornering support and a smooth street ride. Because this is a lowering spring kit rather than a listed coilover conversion, buyers looking for adjustable coilover height should weigh that distinction before choosing.

Skip it if you want adjustable coilover ride height; E-MOTOR lists a front pair with up to three inches of adjustment.

This suits a 1978–1987 G-Body owner seeking a defined 1.5-inch lowering spring setup for street use. The stated drop is fixed, so it is not the listed choice for adjustable coilover height.

Listed on Amazon as: BMR Suspension SP035R G-Body Lowering Spring Kit 1.5in Drop (78-87), 1 Pack

#6

6. E-MOTOR Front Coilovers

• Weight: 24 lb

Best for: Adjustable front stance builders.

Why it ranks #6: This adjustable front coilover pair lists GM G-body fitment, 500-pound springs and up to 3 inches of ride-height adjustment.

Up to three inches of ride-height adjustment is the defining feature of E-MOTOR’s front coilover pair, enabling builders to tune front stance on listed GM G-Body, S10, and S15 projects. The package also specifies 500-pound springs, making it an application-specific front suspension choice for custom builds.

The up-to-three-inch ride-height range gives a builder room to adjust front positioning rather than settle for one fixed height. A 500-pound spring rate is specified, while the listed 2.95-inch stroke and approximately 3.46-inch spring inner diameter provide concrete dimensions to consider when planning the installation. Since the listing covers GM G-Body, S10, and S15 custom applications, buyers can evaluate it for those platforms, but should account for its front-only scope.

Skip it if you need a front-and-rear conversion in one package; Fizzvex lists a complete front-and-rear coilover kit.

This fits a builder seeking adjustable front ride height on a listed GM G-Body, S10, or S15 project. Its front-pair scope and stated spring dimensions matter when planning the rest of the suspension.

Listed on Amazon as: Adjustable Front Coilover Shock Pair 500LB Springs GM G Body S10 S15

#7

7. eLifecenter Front Coilover Kit

Best for: Front small-block coilover projects.

Why it ranks #7: The front kit lists G-body compatibility, includes a spring and strut, and has a one-year warranty in the supplied specifications.

A welded bolt-screw connection is the stated upgrade to eLifecenter’s front coilover shock kit, with the supplied description saying it was changed to avoid breaking during use. The kit is identified as suitable for front small-block applications and lists compatibility with several vehicle platform families.

The listing includes a spring and strut, defining this as a front coilover kit rather than a rear suspension package. Hardened steel is the specified material, and the manufacturer description says the bolt screw was replaced by welding to avoid breakage during use and provide higher load bearing. Its listed compatibility includes G-Body, S10, S15, second-generation F-Body, and X-Body vehicles, so buyers should use the stated platform range when assessing their project.

Skip it if you need a complete front-and-rear conversion; NEWZQ lists a coilover conversion set for both ends.

This fits a buyer seeking a front coilover kit for a listed G-Body or other named platform, especially one considering the stated welded connection update. Its front-only scope is an important boundary.

Listed on Amazon as: 73-77 A-Body 82-88 G-Body Front Coilover Suspension Shock Kits

#8

8. TORDXICS Front Coilover Pair

Best for: Multi-platform adjustable front coilovers.

Why it ranks #8: This front pair lists 500-pound springs and compatibility with 1982–1988 G-body applications, though the supplied data gives few other setup details.

TORDXICS lists adjustable front coilover struts with 500-pound springs for 1982–1988 G-Body applications, enabling a front suspension upgrade with spring and strut components included. Its stated compatibility also reaches S10, S15, second-generation F-Body, and X-Body vehicles.

The included spring and strut establish the product as a front coilover pair, while the 500-pound spring specification gives buyers a concrete setup detail to review. Adjustable operation is listed, offering a stated means to change the front suspension setup. Compatibility includes 1982–1988 G-Body plus S10, S15, second-generation F-Body, and X-Body platforms. The listing does not identify a rear conversion, so buyers planning both ends should treat this as a front-only package.

Skip it if you need a front-and-rear conversion in one kit; Fizzvex lists a complete front-and-rear coilover package.

This suits a buyer seeking adjustable front coilovers with 500-pound springs for a listed 1982–1988 G-Body or other named platform. Its front-only scope is the key boundary when planning a full-car upgrade.

Listed on Amazon as: Front Coilover Shock Absorber Strut Pair Set Adjustable 500 lb Springs Compatible for 1973-1977 A-Body 1982-1988 G-Body

#9

9. Looklardy Tubular Control Arms

Best for: Multi-platform tubular-arm shoppers.

Why it ranks #9: The listing covers 1978–1988 G-body models and tubular front upper and lower control arms, but also includes other vehicle applications.

Looklardy lists tubular upper and lower control arms for 1978–1988 G-Body cars and 1982–2004 two-wheel-drive S10 trucks, giving buyers a broad stated application range. The product’s tubular construction and multi-model compatibility are the central reasons to consider it when selecting control arms.

The listed tubular material distinguishes these arms from an unspecified construction and gives buyers a concrete component detail for evaluating a replacement. Compatibility spans 1978–1988 G-Body cars and 1982–2004 S10 two-wheel-drive trucks, with named examples including Monte Carlo, Malibu, El Camino, and S10 models. That breadth helps owners of the stated vehicles assess the application, but the listing describes control arms rather than a complete suspension kit with springs or shocks.

Skip it if you need an all-in-one spring-and-shock conversion; NEWZQ lists a front-and-rear coilover conversion set.

This suits owners evaluating tubular upper and lower arms for a listed G-Body or S10 2WD application. Its broad fitment is useful, but the described product remains a control-arm set rather than a full suspension conversion.

Listed on Amazon as: Tubular Control Arms Fit for GM G-Body 1978-1988 S10 1982-2004

#10

10. QA1 DK31-GMG2 Drag Kit

• Weight: 25.8 lb

Best for: Early G-Body drag-kit buyers.

Why it ranks #10: This Level 1 drag suspension kit is listed for 1969–1972 G-body applications and excludes shocks, limiting its fit to this roundup’s common later range.

QA1’s Drag Kit 2.0 Level 1 is specifically listed for 1969–1972 G-Body applications, giving owners of the stated Grand Prix and Monte Carlo compatible vehicles a drag-suspension kit option. Its defining boundary is equally clear: the listing says it is supplied without shocks, so buyers can plan those components separately.

The GMG2 compatibility and 1969–1972 G-Body application help narrow this kit to the stated vehicle range rather than a general suspension upgrade. Its Level 1 Drag Kit 2.0 designation identifies it as a drag-suspension package, while the explicit without-shocks listing makes component planning important: it does not supply shocks as part of the described kit. Check the application and prepare a separate shock plan before beginning the installation.

Skip it if you need shocks supplied in the same package; the listing explicitly excludes them.

This suits an owner of a listed 1969–1972 G-Body Grand Prix or Monte Carlo seeking a Level 1 drag-suspension kit. Its stated application is narrow, and the shock-free configuration calls for separate shock planning.

Listed on Amazon as: QA1 DK31-GMG2 Drag Kit 2.0, Level 1, 69-72 G-Body, W/O Shocks