SKU: 40707764290

QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 600lbs/in - Flat Large - Aluminum

Sale price$420.30 Regular price$467.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 600lbs/in - Flat Large - AluminumQA1 now has GM Pro Coil Systems available for your 1963 1965 Buick Riviera. They offer fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way. They also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro

QA1 now has GM Pro Coil Systems available for your 1963-1965 Buick Riviera. They offer fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way. They also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable and simultaneous compression and rebound adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs.

  • Achieve the ultimate balance of ride quality and performance with simultanious adjustment of rebound and compression valving.
  • Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
  • Up to 2 of ride height adjustment allows you to dial in the perfect stance.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA

This Part Fits:

Year Make Model Submodel
1963-1965 Buick Riviera Base
1965 Buick Riviera Gran Sport
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40707764290

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Jose Gauto
Dallas, US
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Price and desing
Desig macth on other price brand
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Reviewed in the United States on May 29, 2026
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Sou Saelee
Bozeman, US
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Color: Classic Black, Size: 36W x 30L
Comfortable!!!!
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Reviewed in the United States on May 9, 2026
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Jorge lozano
Fort Morgan, US
★★★★★ 5
Buena calidad
Color: Khaki, Size: 40W x 30L
Bastante más cómodo de lo que esperaba
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Reviewed in the United States on April 29, 2026
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fun
Massapequa, US
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Slacks
Color: Classic Black, Size: 42W x 32L
Great look and fit
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Reviewed in the United States on May 1, 2026
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CarlosNC
Chelsea, US
★★★★★ 5
Great fit without feeling stiff
Color: Dark Grey, Size: 34W x 30L
I ordered the 32x32 and the fit was exactly what I expected. The slim fit cut looks clean without being too tight through the thighs or calves, and the expandable waistband is honestly one of the best parts. It gives a little extra room when sitting or moving around, but it doesn’t look bulky or obvious like some stretch waist dress pants do. The material feels lightweight and breathable with a little stretch, so they stay comfortable even after wearing them all day. The quality surprised me for the price. The stitching looked clean, the zipper worked smoothly, and the fabric had a nicer appearance than I expected straight out of the package. They also matched the listing photos well and didn’t have that cheap shiny look some dress pants have. I wore them with a dress shirt for work, but they could easily work with a polo or sweater too. The wrinkle resistance is decent and they held their shape well after sitting for long periods. For the money, these feel like a really solid value and I’d buy another pair in a different color.
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Reviewed in the United States on May 25, 2026

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