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QA1 GD501-11300A Front Pro Coil Double Adjustable Coilover Shock System 300 lb/in Spring

(Chevrolet Malibu 1964-67, Chevelle 1964-67, El Camino 1964-67, Bel Air 1956-57, Truck 1955-57, Two-Ten Series 1955-57; Pontiac GTO 1964-67 + 8 more models)

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

GD501-11300A
13 reviews
Sale Price

$964.95

Estimated ship date Monday, November 23

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Product Details

The QA1 GD501-11300A is a front Pro Coil double adjustable coilover shock system engineered for GM muscle cars. Featuring lightweight, clear-anodized billet aluminum shock bodies and high-travel USA-made coil springs, this bolt-in kit delivers a significant upgrade in ride quality, stance, and tunable performance over factory suspension — no cutting or welding required.

The double adjustable Proma Star shocks provide 18 clicks of independent compression and rebound adjustment, unlocking 324 total valving combinations to dial in performance for any application — from daily street driving to drag racing, autocross, and road racing. Ride height is fully adjustable through a threaded shock body and spring seat nut, offering 0 to –2 inches of ride height adjustability. Valving adjustments are easily accessible by turning the front wheels to full lock and reaching in at the base of the shock.

This kit includes a pair of GD501 double adjustable coilover shocks paired with 11-inch, 300 lb/in tapered pigtail-end coil springs rated for vehicles with 1,601–1,700 lbs. of front-end weight. The compressed shock length is 10.13 inches and the extended length is 17 inches. Kits are compatible with both OE stamped steel control arms and QA1 tubular control arms for added flexibility.

Key Features:

  • Double adjustable — 18-position independent compression and rebound knobs (324 valving combinations)
  • Lightweight, clear-anodized billet aluminum shock bodies
  • 11-inch high-travel USA-made coil spring, 300 lb/in spring rate, tapered pigtail upper end
  • Compressed length: 10.13 in. | Extended length: 17 in.
  • 0 to –2 inches of ride height adjustability via threaded body and spring seat nut
  • Fits 1,601–1,700 lbs. front-end weight applications
  • Direct bolt-in — compatible with OE stamped steel or QA1 tubular control arms
  • 100% dyno tested and serialized
  • Serviceable and rebuildable by QA1 Authorized Service Centers
  • Made in the USA
  • Limited Lifetime Warranty (registration required at QA1.net/Warranty)
  • Sold as a pair

A spanner wrench (P/N T114W or T115W) is required for installation. Optional thrust bearing kits (P/N 7888-109) are available separately.

Products specifications

Fits

Chevrolet Malibu 1964-67, Chevelle 1964-67, El Camino 1964-67, Bel Air 1956-57, Truck 1955-57, Two-Ten Series 1955-57; Pontiac GTO 1964-67, LeMans 1964-67, Tempest 1964-67; Oldsmobile Cutlass 1964-67, 442 1964-67, F85 1964-67 + 4 more models

Compressed Height

10.5

Extended Height

15

Ref No

41

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Title

QA1 Shock Absorber and Coil Spring Assembly GD501-11300A

Did not receive any confirmation emails. However contacted them VIA chat and they provided me with information. Shipping is on the slower side.

Good so far. Clean easy website.

Lowest price we could find. Fast shipping. Would do business with them again.

Best price I found online, I ordered it late Friday and they shipped it on Monday. I would definitely use this site again for future automobile and Motorcycle purchases.

AWesome service. questions answered immediately via chat and order was en route via fed ex within 6 hours!!!!!!

Good products, great selection, and quick purchase. Will definitely be buying again.

Good price

Great.

I searched and searched and could not find a good price then i found Autoplicity and gave it a try, i couldn't believe i found my headers i wanted at an incredible low price, let alone the shipping was at a fair price even total price was lower than ebay or other places, definitely keeping this site on my sights for new parts and other products im keeping in mind!

Great selection, prices and very fast shipping! I will return!!

So far so good waiting for shipment

Smooth easy process

Awesome customer service, fast shipping!

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