64-72 GM A-Body, 69-72 Grand Prix & 70-72 Monte Carlo Rear Pro Coil System

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$723.94
64-72 GM A-Body Rear Coil-Over Conversion Kits 64-72 GM A-Body Rear Coil-Over Conversion Kits
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  • 64-72 GM A-Body Rear Coil-Over Conversion Kits
  • 64-72 GM A-Body Rear Coil-Over Conversion Kits - MOD™ Series Adjustable
  • 64-72 GM A-Body Rear Coil-Over Conversion Kits - Double Adjustable
  • 64-72 GM A-Body Rear Coil-Over Conversion Kits - Single Adjustable

1964-1972 GM A-Body, 1969-1972 Grand Prix & 1970-1972 Monte Carlo Rear Coil-Over Conversion Kits

QA1 offers bolt-in Rear Coil-Over Conversion Kits for 1964-1972 GM A-body vehicles such as Chevelle, Cutlass and Regal, as well as 1969-1972 Grand Prix and 1970-1972 Monte Carlos. These kits include specially designed USA-made mounting brackets, single, double, or MOD™ Series adjustable aluminum shocks specific to 1964-1972 GM A-bodies, 1969-1972 Grand Prix and 1970-1972 Monte Carlos, high travel springs and all necessary hardware.

Single adjustable shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1’s double adjustable shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for a total of 324 possible valving combinations. MOD™ Series shocks also feature a double adjustable design but include adjustable low-speed bleed as well for fully independent control over compression and rebound characteristics.

These shocks also utilize a fully threaded body allowing for ride height adjustability. Multiple spring rate options are also available, and have been successfully tested in various applications, from casual street driving to hard core race applications.

With our highly popular adjustable front coil-over kits and the addition of the rear coil-over conversion kit, you can now get a complete suspension makeover for both ends of the vehicle.

  • Made in the U.S.A.
  • Easy, Bolt-In Installation
  • No Cutting or Welding
  • Coil-Over
  • Ride Height Adjustable
  • 100% Dyno Tested and Serialized
  • Rebuildable and Revalveable by the QA1 Factory or QA1 Authorized Service Centers
  • Kit Will Lower the Vehicle

 

Additional MOD™ Series Features:

  • Features QuickTune™ technology - modular valve packs that allow for completely revalving the shock without having to remove it from the car!
  • 24 click independent compression and rebound adjustment with low-speed bleed
  • Large solid piston (with blow-off valve) for 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 
  • 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
  • Indexable base eyelet—multiple mounting positions to optimize knob access and provide more mounting flexibility
  • Thrust bearings included

Conversion Kit Note: Later model vehicles tend to weigh more on average. Please take this into account when ordering springs. Call QA1 tech at 952.985.5675 for questions.

Pro Coil Systems include:

  • 2 Shocks
  • 2 High Travel Springs
  • All Mounting Brackets and Hardware

Installation instructions for 64-72 GM A-Body Rear Pro Coil System

MOD™ Series Shock Installation and Quick Tuning Guide

Spanner wrenches and thrust bearing kits sold seperately

SPRING RATE CHART
The chart below is a general guideline for selecting spring rates for QA1's Rear Pro Coil Shock Systems for 64-72 GM A-Bodies. Spring rates may vary depending on applications, usage and personal preference.

1964-1972 GM A-Body
SoftMediumFirm
130 150 175

 

1969-1972 Pontiac Grand Prix & 1970-1972 Chevrolet Monte Carlo
SoftMediumFirm
150 175 200

AVERAGE VEHICLE WEIGHT
See our detailed Spring Rate Chart with Vehicle Weights for general guidelines on determining the approximate weight of popular vehicles and which spring rates work best for them.

QA1's Rear Coil-Over Conversion Kits

 

Assembling a QA1 Coil-Over Shock Kit

 

Change Ride Height & Valving on Single Adjustable Coil-Over Shocks

Part Numbers
1964-1972 GM A-Body
Ride FeelingMOD™ Series AdjustableDouble AdjustableSingle Adjustable
Soft RCK52440 RCK52335 RCK52339
Medium RCK52441 RCK52336 RCK52340
Firm RCK52442 RCK52337 RCK52341

 

Part Numbers
1969-1972 Pontiac Grand Prix & 1970-1972 Chevrolet Monte Carlo
Ride FeelingMOD™ Series AdjustableDouble AdjustableSingle Adjustable
Soft RCK52440 RCK52336 RCK52340
Medium RCK52441 RCK52337 RCK52341
Firm RCK52442 RCK52358 RCK52359

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