QA1 Adjustable 11 Inch Coil-Over Shock Kit

#721395

QA1 Adjustable 11 Inch Coil-Over Shock Kit

Name: QA1 Adjustable 11 Inch Coil-Over Shock Kit
Brand: QA1
SKU: 721395
Price: 691.8 USD
Availability: InStock
Rating: 4.9 (23 reviews)

23 Reviews

17 Questions

Features a billet aluminum shock body
An 18-position adjuster knob changes the rebound valving
Guaranteed to stay within 2% of rate and length FOR LIFE

Mount Length:

11 Inch

14 Inch15.3 Inch 12 Inch

$691.80

/kit

In Stock

Quantity

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Product Summary

Universal Fit, Rear Position, 11" Mounted Length

Features a billet aluminum shock body
An 18-position adjuster knob changes the rebound valving
Guaranteed to stay within 2% of rate and length FOR LIFE
Allows for suspension control in one easy-to-reach location
Revalveable and rebuildable by QA1 authorized service centers

Comes as a Kit

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Key Specs

Position	Rear
Mounted Length	11"
Shock Adjustability	Single Adjustable
Shock Type	Mono Tube
Shock Body Material	Aluminum

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Need To Know

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855.313.9176

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Details

These premium aluminum bodied shocks are not a revalved race shock - they were built specifically for street rods. QA1 shocks feature 18 easily adjustable rebound settings to fine tune your hot rod's ride. Has 5/8" I.D. mounting eyes and includes 1/2" bushing. Sold as a pair.

Billet aluminum shock body
5/8" centerless ground, hard chrome plated, solid piston rod
Deflective Disc Valving
3-step sealing system
18-position adjuster knob changes the rebound valving
Allows suspension control in one easy-to-reach location
100% dyno tested and serialized
Revalveable and rebuildable by QA1 authorized service centers
2-1/2" I.D. chrome-silicon spring
Guaranteed to stay within 2% of rate and length FOR LIFE

Note: Shock lengths represent mounted length at ride height.

Charts

Coil-Over Chart (JPG)

Coil-Over Mounting Guide (GIF)

Guides & Documents

Coilovers Technical Information (721395)

Coilovers Technical Information (7213955)

Coilovers Installation Instructions (7213955)

Coil Springs Technical Information (25508)

Warranty (QA1)

Technical Information (QA1)

Specifications

KEY SPECS
Brand	QA1
Position	Rear
Mounted Length	11"
Shock Adjustability	Single Adjustable
Shock Type	Mono Tube
Shock Body Material	Aluminum
Upper Shock Mount	Bushed Eyelet
Lower Shock Mount	Bushed Eyelet
Height Adjustable	Yes
Finish	Chrome

GENERAL
Compressed Length Range	9.00" to 9.99"
Compressed Length	9.5"
Extended Length Range	12.00" to 12.99"
Extended Length	12.75"
Mounted Length Range	10 3/4" - 11 1/4"
Shaft Diameter	0.63"
Bushing Length	1.25"
Inside Diameter	2.5"
Overall Diameter	3.25"
Sold in Quantity	Kit

Ratings & Reviews

4.9

23 Reviews

Overall Assessment

Customers celebrate the product's top-notch quality and practicality, highlighting its perfect fit for various models such as '48 Chevrolet Stylemaster, '34 Ford Tudor sedan, custom-built frames, and more. Users enjoy the comfortable ride and easy adjustments provided by these coil overs. They appreciate its quality construction and finish, which elevates the vehicle's look. The product stands out for its exceptional performance even in overload scenarios, with some customers emphasizing how it solved their ride height issues. Many users express intents to repurchase, praising its superiority over other brands in terms of quality and usability. The ability to nail the perfect spring rate further impresses customers, along with superior rebound adjustment for optimal ride quality.

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4.9

23 reviews

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QA1 SHOCKS RULE

5.0

2 years ago

candle lake Saskatchewan Canada soj3e0

Verified

The qa1 s are awesome quality, and work well

Would Recommend

Great product !!!!!!!!

5.0

3 years ago

tom

Knoxville, Tn

Verified

Great for its intended use.

Would Recommend

Smooth riding NOW

5.0

4 years ago

Mr. B

Richmond,KY

Verified

The previous owner had installed a set of 3 (three) inch lowering blocks PLUS A set of ATV lookin' shocks on the rear of my 48 Chevrolet Stylemaster...... REAL JAKE - LEG like......BUT the 11 inch QA-1 Coilover SOLVED my problem and RESTORED the comfortable ride the car should have had.

I will buy this product again as long as I live!

4.0

4 years ago

John Henry Jones

Russellville Arkansas

Verified

I installed them on the front of my 1934 Ford Tudor sedan and I'm going to replace the coil overs on the rear of the car now even though the shocks are still good. I just love the QA-1 coil overs that must!

Would Recommend

Speedway came through with the part I needed!!!

5.0

5 years ago

Doug The Builder

Roswell, GA

Verified

I'm going to use these coil overs as an overload spring for my '32. These are overkill, but they fit the look and should do the trick

Would Recommend

They were a good fit for my locost project front

5.0

5 years ago

Isaiah

Newberg

Verified

I put them on the front of a fake Lotus 7. A wee bit stiff (wish they'd offered a 150 coil rate, 200 was as low as I could go) but they fit and look great!

Would Recommend

i would buy this again

5.0

5 years ago

sparky

fort jennings ohio

Verified

top notch!

Would Recommend

Would buy again

5.0

5 years ago

Joe

Tennessee

Verified

Using with a triangular 4 bar setup. Perfect

good quality - really fast shipping

5.0

6 years ago

Ray

Langley BC Canada

Verified

Used on a custom built frame - worked great

Would Recommend

Good stuff

5.0

6 years ago

Goose

Redding

Verified

I put these on the Tbird IRS in my 67 f100 and I love the adjustments they offer.

Would Recommend

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Questions & Answers

17 Questions • 10 Answers

Sort Questions

Will this work on my 87 r10 pu? It's lowered.

by Joemomma

• 7 years ago

1 answer

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I am interested in your QA1 11" adjustable coilover,for my rod. I am vertically mounting hardware and will have 700 lb rear axle sprung rate. what will i need for spring rate for #721395.

by Terry

• 8 years ago

1 answer

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Is there a document with dimensions to verify sizes for a custom application?

by Zach

• 9 years ago

1 answer

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What is the length of the 5/8" to 1/2" bushing?

by Zach

• 9 years ago

1 answer

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Are these half car weights plus or minus unsprung weight ? Also, why does the spring rate reduce for a given weight as the spring length increases ? Example: I have a 1934 Ford steel sedan. It weighs 3140 lbs. with half gas and driver. Given the 55/45 front- back weight division I would have 1413 lbs. on the rear. Subtracting 300 lbs. unsprung weight leaves me with approx. 1100 lbs. rear car weight to support. Do you have a recommendation for a set of QA1 kits mounted at 20/25 degrees ? This is a solid axle car. I've searched high and low for a reasonably accurate answer and at best they have been vague or direct me to some chart. I haven't made a final decision as to mounting length but will be approx. 12 inches center to center. Thanks. HT.

by Hank

• 10 years ago

1 answer

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What Springs would I need for a 1/2 car weight of 800 lb?

by Chris

• 10 years ago

1 answer

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Would it be possible to order the coilover shock kit with a stiffer spring rate?

by Aren

• 10 years ago

1 answer

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What is the length of these springs and what is the spring rate?

by Lee

• 11 years ago

1 answer

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Will this work for my fatman Mustang II front end? I want to gain 3" in front. Sits too low with stock.

by John

• 11 years ago

1 answer

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i have a 1955 chevy truck pro street i need a 11 coil shock ?

by Jack4ed

• 12 years ago

1 answer

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