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-QA1 71-76 GM B-Body 12-250 Kit Rear Pro-Coil D-Adj-Coilovers-QA1
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QA1 71-76 GM B-Body 12-250 Kit Rear Pro-Coil D-Adj

QA1
QAPRCK52364
806990168764
Coilovers
6 Units In Stock - Ships Next Business Day
$ 1,163.17 $ 1,049.95
$ 1,049.95

SKU: RCK52364 | UPC: 806990168764

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

This QA1 RCK52364 kit upgrades 1971-1976 Chevrolet Impala and Caprice B-Body models to rear Pro-Coil double adjustable coilovers with 250 lb/in springs. Bolt-in design replaces leaf springs for precise ride height adjustment from 0.5 inch above stock to 2.25 inches below stock and dual valving for compression and rebound damping. Gain improved handling, wheel fitment up to 28-inch tires, and daily drivability on street cars, hot rods, or Donks.

Key Features

  • Double Adjustable Valving: 16-position compression and 24-position rebound adjustments tune firmness or softness for track performance or street comfort in seconds without tools.
  • Adjustable Ride Height: Threaded spring perch sets rear height from stock to 2.25 inches drop, fitting big wheels and custom stance with 2-inch front compatibility.
  • Bolt-In Installation: Complete kit includes upper and lower mounts, hardware, and Pro Coil assemblies for direct fit on factory 12-bolt housings or Quick Performance 9-inch axles.
  • 250 lb/in Springs: Progressive rate coil springs deliver balanced load support and progressive response for B-Body weight distribution.
  • Limited Lifetime Warranty: Backed by QA1 quality for long-term reliability on drag, street, or circle track use, made in USA.

Product Notes

  • Works with factory rear housings or Quick Performance 9-inch axles, sold as a pair.
  • Pair with QA1 front coilovers for full adjustable suspension setup.
  • Ships ready-to-install with all brackets and hardware included.

Installation Notes

  • Professional installation recommended.
  • Remove factory leaf springs and mounts, torque to QA1 specs provided in instructions.
  • Compatible with stock control arms and exhaust, verify clearance for 28-inch wheels.

This Part Fits

Year Make Model Submodel
1971-1972 Chevrolet Caprice Base
1973-1976 Chevrolet Caprice Classic
1976 Chevrolet Caprice Classic Estate
1976 Chevrolet Caprice Classic Landau
1975-1976 Chevrolet Caprice Classic Sport
1973-1974 Chevrolet Caprice Estate
1971-1976 Chevrolet Impala Base
1975-1976 Chevrolet Impala Custom
1976 Chevrolet Impala Custom Landau
1976 Chevrolet Impala S
1975-1976 Chevrolet Impala Sport

Why Choose QA1?

  • Over 30 years leading in rod ends, spherical bearings, and suspension for racing markets.
  • 83,000 sq ft manufacturing in Lakeville, MN ensures American-made precision components.
  • Innovative in-house carbon fiber and Pro Coil technology for motorsports reliability.

Frequently Asked Questions

  • Q: Does this kit fit factory rear ends on 71-76 Impala?
    A: Yes, direct bolt-in for OEM 12-bolt housings and Quick Performance 9-inch axles with provided mounts.
  • Q: What spring rate and adjustments are included?
    A: 250 lb/in linear springs with double adjustable shocks offering 16 compression and 24 rebound positions.
  • Q: What is the warranty coverage?
    A: Limited lifetime warranty on coilovers against defects when installed and used per instructions.

Shipping & Handling

  • Method: UPS Ground or Freight for heavy items
  • Availability: In stock - ships same or next business day
  • Packaging: Ships in one box, 15 x 15 x 10 inches
  • Weight: 45 lbs product weight, 47 lbs shipping weight

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