Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Qa1

QA1 71-76 GM B-Body Rear Pro-Coil MOD 12-250 Kit

SKU: QAPRCK52461

Coilover Kits

QAP Coil-Overs - Pro Coil...

Qa1

QA1 71-76 GM B-Body Rear Pro-Coil MOD 12-250 Kit

SKU: QAPRCK52461

Coilover Kits

QAP Coil-Overs - Pro Coil...

A$5,090.35
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

QA1 MOD Series coilover conversion systems put the ability to re-valve your shocks—on your car—into the palm of your hand. These innovative shocks feature QuickTune Technology, an industry-first that provides the ability to adapt to any track, any conditions, any time. The technology consists of interchangeable, dry modular valve pack assemblies, that can be thought of as dozens of finely tuned shocks you can hold in the palm of your hand. They define the valving curve of the shocks, and can be changed without interrupting the oil pathways. Simply unscrew from the shock, bolt-in another one with a new pre-determined valving range—and you're ready to go. There's no mess, no contamination, no air intrusion, and no downtime waiting on someone to re-valve your shocks. Ideal for Circle Track and Street/Strip applications, the shocks are available in a variety of extended and collapsed length models to best fit your vehicle. You get everything you need with these QA1 Rear MOD systems, from shocks to nuts and bolts, complete installation instructions, and even decals!

Additional benefits and features of QA1 MOD Series shocks:

* All new design delivers force, control, and unmatched tenability
* Hard anodized aluminum bodies with PTFE—durable, non-galling surface
* Double-adjustable shocks with low-speed bleed adjustments
* Large solid piston (with blow-off valve)—improved driver feel and control with up to 1,600 lb. force
* High-speed valving adjustment (coarse adjustment)—relates to shock operation during impact events, like hitting a pothole or curb
* 24 clicks/settings—wider range of adjustment than comparable shocks
* Indexable base eyelet—multiple mounting position to optimize knob access and provide more mounting flexibility
* Low-speed valving (fine-tune adjustments)—adjusts ride quality and weight transfer on corner entry/exit; more bleed for softer feel and less bleed for stiffer feel
* Piggyback or remote canister options
* Unique spring adjuster nut and tool
* Thrust bearings included
* Superior thermal performance, as oil is in constant contact with outer body
* One base shock can be upgraded over time to keep up with increased performance levels of your vehicle

Product Overview

Easily convert your Impala or Caprice to coil-over rear suspension with this bolt-in kit. Adjustable ride height gives you the ability to fit up to 28" wheels on your Donk. You can also use these coil-overs to get a better ride and more performance from your everyday street car or hot rod.Adjustable Ride HeightAdjustable coil-overs allow you dial in the exact look you want in minutes. Easily raise or lower your car up to 2" in the front, and set a custom rear ride height anywhere from stock height to up to 5" of drop. MOD Series ShocksGet the ultimate in performance and versatility. Featuring modular valve packs and aggressive force corves, these shocks are both streetable and able to get high-horsepower cars down the drag strip.Easy, Bolt-In InstallationThis kit comes ready to install with all necessary hardware. You can bolt up the coil-overs right in your garage or work with your local shop.Fitment NotesWorks with factory housings or Quick Performance 9" rear axles


Features and Benefits

  • Achieve 1/2 higher than stock down to 2.25" lower than stock.
  • Ultimate balance of ride quality and performance handling with adjustable rebound and compression valving.
  • Limited Lifetime Warranty for peace of mind.
  • Sold as a pair.
  • Proudly made in the USA.

Product Details

Active or Passive Suspension:Passive
Adjustable Compression:Yes
Adjustable Rebound:Yes
Adjustable Ride Height:Yes
Assembled:No
Brand:QA1
Description:QA1 71-76 GM B-Body Rear Pro-Coil MOD 12-250 Kit
Grade Type:Performance
Internal Construction Type:Dual Tube
Manufacturer Part Number:RCK52461
Part Number:qapRCK52461
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Remote Reservoir:Yes
Spring Color:Silver
Spring Material:High Tensile Chrome Silicon
Title:QA1 Shock Absorber and Coil Spring Assembly RCK52461
UPC:806990155542

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb SKU Kit Title
qapBW03-GMB4 QA1 71-76 GM B-Body Level 3 Big Wheel Kit (1x qap52518, 1x qap5252, 1x qap5254, 2x qap9039-308, 1x qapMG507-10600C, 2x qapT121W, 1x qapRCK52461, 1x qap52721, 1x qap52850, 1x qap52851, 1x qap5201)

Part Type

Coilover Set

Data: v4.2 - Upd: 2026-10-15 16:42:44

Features

  • Achieve 1/2 higher than stock down to 2.25" lower than stock.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA.
  • Sold as a pair.
  • Ultimate balance of ride quality and performance handling with adjustable rebound and compression valving.

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
RCK52461
Product Attributes - Part Type
Coilover Kits
Product Attributes - Product Line
QA1 Rear MOD Coilover Conversion Systems
Product Attributes - UPC
806990155542
Product Attributes - Coilover Kit Position
Rear
Product Attributes - Adjustable Valving
Yes
Product Attributes - Number of Valving Selections
324
Product Attributes - Shocks Included
Yes
Product Attributes - Internal Design
Twin-tube
Product Attributes - Coilover Springs Included
Yes
Product Attributes - Spring Rate (lbs/in.)
250 lbs./in.
Product Attributes - Suspension Height Adjustment
0.0-3.0 in. lowered rear, 0.0-2.0 in. raised rear
Product Attributes - Gas Charged
Yes
Product Attributes - Upper Mount
Eyelet
Product Attributes - Lower Mount
Eyelet
Product Attributes - Body Diameter (in.)
2.000
Product Attributes - Shock Body Material
Aluminum
Product Attributes - Shock Body Finish
Black/Red
Product Attributes - Bushing Material
Spherical bearing
Product Attributes - Bushing Color
Natural
Product Attributes - Spring Finish
Gray/Silver
Product Attributes - Crossmember Included
No
Product Attributes - Adjustable Mounting Bracket Included
Yes
Product Attributes - Hardware Included
Yes
Product Attributes - Welding Required
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Kit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.

Reference Information

Brand Name/s Qa1
StreetFX SKU qapRCK52461
SFX Item ID 4095905
Supplier Item Code 4095905
Manufacturer SKU RCK52461
Manufacturer UPC 806990155542
Alternative References qa1, QA1-RCK52461

Compatibility

Application Data
  • UniversalNo
    MakeBUICK
    ModelCENTURION
    SubmodelBASE
    Beginning Year1971
    Ending Year1973
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelCENTURION
    SubmodelBASE
    Beginning Year1973
    Ending Year1973
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelESTATE WAGON
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelESTATE WAGON
    SubmodelBASE
    Beginning Year1973
    Ending Year1973
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelESTATE WAGON
    SubmodelBASE
    Beginning Year1975
    Ending Year1976
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelBASE
    Beginning Year1976
    Ending Year1976
    Engine TypeV6
    Engine Size3.8L/231
    Engine FamilyGM V6
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1971
    Ending Year1973
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1971
    Ending Year1973
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyPontiac V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1975
    Ending Year1976
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1975
    Ending Year1976
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelLUXUS
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeBUICK
    ModelLESABRE
    SubmodelLUXUS
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine Size6.6L/402
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1971
    Ending Year1973
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1971
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1971
    Ending Year1975
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1971
    Ending Year1975
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1971
    Ending Year1972
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.
  • UniversalNo
    MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Application NotesKit allows for clearance of up to 28 in. wheels. Kit works with factory or Quick Performance 9 in. rear axles.

Loading compatibility information...

Keep shopping

More from Qa1