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In-Store Pickup Location

QA1 Pro Coilover Systems GS507-10600C

QA1 GS507-10600C - QA1 Pro Coilover Systems

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Coil Springs/Shocks, Pro Coilover System, Single Adjustable, Buick, Chevy, Oldsmobile, Pontiac, Pair

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Brand: QA1

Manufacturer's Part Number: GS507-10600C

Part Type: Coilover Kits

Product Line: QA1 Pro Coilover Systems

Summit Racing Part Number: QA1-GS507-10600C

UPC: 806990136831

Suspension Height Adjustment: 0.0-2.0 in. lowered

Coilover Kit Position: Front

Recommended Front-End Weight: 2,201-2,300 lbs.

Shocks Included: Yes

Adjustable Valving: Yes

Internal Design: Twin-tube

Gas Charged: No

Number of Valving Selections: 18

Extended Length (in): 14.500 in.

Collapsed Length (in): 9.630 in.

Threaded Adjustment Range: 3.000 in.

Upper Mount: Stud

Lower Mount: Bar pin

Shock Body Material: Aluminum

Shock Body Finish: Clear anodized

Bushing Material: Polyurethane

Bushing Color: Black

Coilover Springs Included: Yes

Spring Rate (lbs/in): 600 lbs./in.

Spring Finish: Silver powdercoated

Crossmember Included: No

Adjustable Mounting Bracket Included: No

Hardware Included: Yes

Welding Required: No

Quantity: Sold as a pair.

Notes: Single adjustable coil-overs. Includes 2 springs and 2 coil-over shocks.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs, designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.


Questions & Answers Ask a Product Question

i have a 1990 c1500 350v8 automatic.. its currently lowered 4/6 with 2" coils/2" spindles... this says 0-2" lower but then says 3 inches of adjustment... im happy with where mine sits right now... but am looking to do an all aluminium top end and tubed headers... so will lose 70ish pounds right off the front.. so how much drop can these actually give or would these work as they seem a bit shorter GE401-10600C

Asked by ROBERT on December 29, 2018


Im running a similar setup in the front end. I bought these to adjust the front end up a 1/2" for tire clearance. They worked perfect. Much nicer ride as well. Lots of anti seize!

STEVE from MA answered on December 30, 2018

+See All Answers (2) Answer This Question


Are these compatible with the DJM tubular lower control arms?

Asked by TERRY on October 31, 2018


QA1 coil-over kits often times do work with other manufactures control arms, but we have not tested these parts for compatibility. Thank you for asking.

QA1 QA1 Answer - November 06, 2018

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If i do the coilover conversion on my c1500 would i have to change/take off any other parts of the suspension? Im on a 5/10 drop and soon ill be going 7/11 or 7/13

Asked by MARTIN on July 31, 2018


This coil-over kit is designed to replace the existing front shocks and springs.

QA1 QA1 Answer - August 01, 2018

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Most Helpful Reviews Review This Product

2 Customer Reviews for QA1 GS507-10600C - QA1 Pro Coilover Systems

Average Customer Review

5 Star


4 Star


3 Star


2 Star


1 Star


+See All 2 Reviews

High recommend these coilovers

Summit RacingSummit Racing Verified Purchase

I recommend this for anyone planing on lowering there stance of there 88-98 c1500 1/2 ton ride quality is amazing compared to lowering springs with lowering shocks.

2 of 2 found this review helpful.

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Reviewer: from AZ

Date: August 20, 2017

Ease of Installation

Excellent quality

Summit RacingSummit Racing Verified Purchase

Very good quality. The dampening of the shocks is very adjustable and highly effective. They look great and perform even better, couldn't be happier

0 of 0 found this review helpful.

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Reviewer: from OH

Date: March 14, 2019

Ease of Installation

Some parts are not legal for use in California or other states with similar laws / regulations

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