QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in - Flat Large - Aluminum
Fits 1975 Buick Apollo, 1973–1977 Buick Century and more
All 148 applications- Authorized dealerGenuine QA1 parts, sourced direct
- 30-day returnsSee the return policy
- Diesel techs on the line908-223-9744, call or text
- Secure checkout
QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in ...
These QA1 GM Pro Coil Systems are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks 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, simultaneous compression and rebound adjustable, or drag "R" Series 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, Non-Adjustable Pro Coil System Features: Steel, Stock Appearing Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs
Installation Instructions- Achieve the ultimate balance of ride quality and performance handling with independent tuning 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
- Brand
- QA1
- Part number
- GD401-10400C
- SKU
- QAPGD401-10400C
- UPC
- 806990062574
- Category
- Coilovers
- Weight
- 20.7 lb
- Shipping
- Ground, ships in 1 to 2 business days
- 1975Buick Apollo
- 1973–1977Buick Century
- 1973–1988Buick Regal
- 1975–1979Buick Skylark
- 1973Chevrolet Chevelle
- 1973–1987Chevrolet El Camino
- 1978–1982Chevrolet Malibu
- 1973–1988Chevrolet Monte Carlo
- 1975–1979Chevrolet Nova
- 1982–2004Chevrolet S10
- 1981–1987GMC Caballero
- 1982–1990GMC S15
- 1991–2004GMC Sonoma
- 1973–1977GMC Sprint
- 1973–1981Oldsmobile Cutlass
- 1973–1977Oldsmobile Cutlass Supreme
- 1975–1979Oldsmobile Omega
- 1978–1987Pontiac Bonneville
- 1973–1980Pontiac Grand Am
- 1973–1987Pontiac Grand Prix
- 1973–1981Pontiac LeMans
- 1977–1979Pontiac Phoenix
- 1975–1977Pontiac Ventura
| Years | Make | Model | Submodel |
|---|---|---|---|
| 1973 | Chevrolet | Chevelle | Laguna Estate |
| 1973 | Chevrolet | Chevelle | Malibu |
| 1973 | Chevrolet | Chevelle | Malibu Estate |
| 1973 | Chevrolet | Chevelle | SS |
| 1973–1987 | Chevrolet | El Camino | Base |
| 1975–1977 | Chevrolet | El Camino | Classic |
| 1977–1978 | Chevrolet | El Camino | Conquista |
| 1974 | Pontiac | LeMans | Safari Luxury |
| 1973–1977 | Pontiac | LeMans | Sport |
| 1977–1979 | Pontiac | Phoenix | Base |
| 1978–1979 | Pontiac | Phoenix | LJ |
| 1978–1979 | Pontiac | Phoenix | SJ |
| 1975–1977 | Pontiac | Ventura | Base |
| 1975 | Pontiac | Ventura | Custom |
| 1975 | Pontiac | Ventura | S |
| 1975–1977 | Pontiac | Ventura | SJ |
| 1975–1979 | Chevrolet | Nova | Base |
| 1976–1977 | Chevrolet | Nova | Concours |
| 1975 | Chevrolet | Nova | Custom |
| 1978–1979 | Chevrolet | Nova | Custom |
| 1975 | Chevrolet | Nova | LN |
| 1975–1978 | Chevrolet | Nova | Police |
| 1977–1979 | Chevrolet | Nova | Rally |
| 1976 | Chevrolet | Nova | SS |
| 1975 | Buick | Apollo | Base |
| 1975 | Buick | Apollo | SR |
| 1973–1977 | Buick | Century | Base |
| 1975–1977 | Buick | Century | Custom |
| 1976 | Buick | Century | Indianapolis 500 Pace Car |
| 1973–1975 | Buick | Century | Luxus |
| 1975–1977 | Buick | Century | Special |
| 1973–1987 | Buick | Regal | Base |
| 1975 | Oldsmobile | Cutlass | 442 |
| 1977 | Oldsmobile | Cutlass | 442 |
| 1973–1975 | Oldsmobile | Cutlass | Base |
| 1980 | Oldsmobile | Cutlass | Base |
| 1980–1981 | Oldsmobile | Cutlass | Brougham |
| 1977 | Oldsmobile | Cutlass | Colonnade |
| 1976–1977 | Oldsmobile | Cutlass | Colonnade S |
| 1975 | Pontiac | Grand Prix | LJ |
| 1977–1983 | Pontiac | Grand Prix | LJ |
| 1975–1980 | Pontiac | Grand Prix | SJ |
| 1973–1981 | Pontiac | LeMans | Base |
| 1973–1974 | Pontiac | LeMans | Luxury |
| 1973–1975 | Pontiac | LeMans | Safari |
| 1977–1981 | Pontiac | LeMans | Safari |
| 1976–1977 | Oldsmobile | Cutlass Supreme | Colonnade |
| 1974–1975 | Oldsmobile | Cutlass Supreme | Cruiser |
| 1975 | Oldsmobile | Cutlass Supreme | Hurst |
| 1975–1979 | Oldsmobile | Omega | Base |
| 1976–1979 | Oldsmobile | Omega | Brougham |
| 1978–1979 | Oldsmobile | Omega | Brougham LS |
| 1977 | Oldsmobile | Omega | Deluxe |
| 1976–1977 | Oldsmobile | Omega | F85 |
| 1975 | Oldsmobile | Omega | Salon |
| 1976–1978 | Oldsmobile | Omega | SX |
| 1978–1987 | Pontiac | Bonneville | Base |
| 1978–1986 | Pontiac | Bonneville | Brougham |
| 1984–1987 | Pontiac | Bonneville | LE |
| 1978–1980 | Chevrolet | Malibu | Classic Estate |
| 1978–1981 | Chevrolet | Malibu | Classic Landau |
| 1979–1980 | Chevrolet | Malibu | Classic Sport |
| 1979–1980 | Chevrolet | Malibu | Estate |
| 1979 | Chevrolet | Malibu | Landau |
| 1979 | Chevrolet | Malibu | Police |
| 1978–1981 | Chevrolet | Monte Carlo | Landau |
| 1986–1988 | Chevrolet | Monte Carlo | LS |
| 1973 | Chevrolet | Monte Carlo | S |
| 1975–1977 | Chevrolet | Monte Carlo | S |
| 1978 | Chevrolet | Monte Carlo | Sport |
| 1980 | Chevrolet | Monte Carlo | Sport |
| 1983–1988 | Chevrolet | Monte Carlo | SS |
| 1978–1981 | Pontiac | Bonneville | Safari |
| 1973–1975 | Pontiac | Grand Am | Base |
| 1978–1980 | Pontiac | Grand Am | Base |
| 1973–1974 | Pontiac | Grand Prix | Base |
| 1976–1987 | Pontiac | Grand Prix | Base |
| 1981–1987 | Pontiac | Grand Prix | Brougham |
| 1984–1987 | Pontiac | Grand Prix | LE |
| 1979–1980 | Chevrolet | Malibu | Sport |
| 1973–1974 | Chevrolet | Monte Carlo | Base |
| 1979 | Chevrolet | Monte Carlo | Base |
| 1981–1988 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1973–1974 | Chevrolet | Monte Carlo | Landau |
| 1976 | Chevrolet | Monte Carlo | Landau |
| 1980–1981 | Oldsmobile | Cutlass | LS |
| 1973–1977 | Oldsmobile | Cutlass | S |
| 1976–1979 | Oldsmobile | Cutlass | Vista Cruiser |
| 1979 | Oldsmobile | Cutlass | Vista Cruiser Brougham |
| 1973–1977 | Oldsmobile | Cutlass Supreme | Base |
| 1977 | Oldsmobile | Cutlass Supreme | Brougham |
| 1981–1986 | Chevrolet | El Camino | Conquista |
| 1973–1974 | Chevrolet | El Camino | Custom |
| 1979–1981 | Chevrolet | El Camino | Royal Knight |
| 1973–1987 | Chevrolet | El Camino | SS |
| 1978–1981 | Chevrolet | Malibu | Base |
| 1978–1982 | Chevrolet | Malibu | Classic |
| 1982–1990 | GMC | S15 | Base |
| 1987 | GMC | S15 | EL |
| 1983 | GMC | S15 | Gypsy |
| 1986–1988 | GMC | S15 | Gypsy |
| 1982–1990 | GMC | S15 | High Sierra |
| 1982–1990 | GMC | S15 | Sierra Classic |
| 1982 | GMC | S15 | Sierra Grande |
| 1991–1993 | GMC | Sonoma | Base |
| 1992 | GMC | Sonoma | GT |
| 1994–2004 | GMC | Sonoma | SL |
| 1983–1986 | Buick | Regal | T-Type |
| 1975–1979 | Buick | Skylark | Base |
| 1978–1979 | Buick | Skylark | Custom |
| 1976–1979 | Buick | Skylark | S |
| 1978 | Buick | Skylark | Sport |
| 1975–1977 | Buick | Skylark | SR |
| 1973 | Chevrolet | Chevelle | Deluxe |
| 1973 | Chevrolet | Chevelle | Laguna |
| 1988 | Buick | Regal | Custom |
| 1982–1983 | Buick | Regal | Estate Wagon |
| 1987 | Buick | Regal | GNX |
| 1984–1987 | Buick | Regal | Grand National |
| 1978–1988 | Buick | Regal | Limited |
| 1982 | Buick | Regal | Limited Turbo |
| 1978–1982 | Buick | Regal | Sport |
| 1976–1977 | Buick | Regal | SR |
| 1991–2001 | GMC | Sonoma | SLE |
| 1993–2004 | GMC | Sonoma | SLS |
| 1973–1977 | GMC | Sprint | Base |
| 1975–1977 | GMC | Sprint | Classic |
| 1973–1974 | GMC | Sprint | Custom |
| 1975 | GMC | Sprint | High Sierra |
| 1976 | GMC | Sprint | Sierra Madre Del Sur |
| 1975–1976 | GMC | Sprint | SP |
| 1991 | Chevrolet | S10 | Baja |
| 1982–2003 | Chevrolet | S10 | Base |
| 1982–1990 | Chevrolet | S10 | Durango |
| 1992–1993 | Chevrolet | S10 | EL |
| 1994–2004 | Chevrolet | S10 | LS |
| 1982–1989 | Chevrolet | S10 | Sport |
| 1994–1998 | Chevrolet | S10 | SS |
| 1982–1992 | Chevrolet | S10 | Tahoe |
| 1999–2003 | Chevrolet | S10 | Xtreme |
| 1994–2003 | Chevrolet | S10 | ZR2 |
| 2002–2004 | Chevrolet | S10 | ZR5 |
| 1981–1986 | GMC | Caballero | Amarillo |
| 1981–1987 | GMC | Caballero | Base |
| 1981 | GMC | Caballero | Conquista |
| 1981–1987 | GMC | Caballero | Diablo |
| 1981 | GMC | Caballero | Royal Knight |
Applications are the manufacturer's published fitment for this part number.
Not sure it fits? Call 908-223-9744 or text us the year, model and engine. We confirm fitment before you order.
- Shipping
- In-stock parts ship in 1 to 2 business days. Tracking is emailed as soon as the label prints.
- Returns
- 30-day returns on unused parts in the original packaging. Return policy.
- Warning
- This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Reviews
What customers say
Verified reviews collected by Loox from real orders.
Good to know
Questions, answered straight.
If it is not here, call or text the counter. Real people, real answers.
Fitment
-
Will this fit my truck?
The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.
-
What if I order the wrong part?
Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.
Shipping
-
When will it ship?
In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.
-
Why did I only get part of my order?
We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.
Returns and warranty
-
What is the return policy?
30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.
-
How do warranty claims work?
We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.
Paying
-
Can I pay over time?
Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.
-
What is a core deposit?
Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.
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Real techs on the phone
Call or text 908-223-9744 and you get a diesel tech, not a script.
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Authorized dealer
Genuine parts straight from the manufacturer, with the factory warranty behind them.
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Fast from stock
Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.
Authorized dealer for 140+ brands
All brands
- 7+ Years in business
- 6+ Shop technicians
- 30,000+ In-stock SKUs
- 25+ Trucks given away
The shop floor, Nazareth, PAFull Send Diesel, Nazareth, PA
A team of diesel people, not a call center.
Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.
Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.
Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.
