Rear Pro Coil System

Additional Information

Big Wheel Rear Pro Coil Kit, 71-76 GM B-Body, MOD Series Shocks, 250 lb. springs

Part Type

Coilover Set

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

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)

• 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.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Reference Information

Coilover Kits, Rear MOD Coilover Conversion Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 250 lbs./in. Spring Rate, Buick, Chevy, Olds, Pontiac, Kit

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