QA1 88-98 C1500 9in Rear Suspension Conversion System - Double Adj. - 200lb/in (STD Axle)
Why this price?
$5,084.95 is MSRP, the lowest price QA1 lets us list it at. Additionally, Pro members get 3% to 35% back on most parts.
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to QA1, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with QA1, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
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Upgrade the rear suspension of your 1988-1998 Chevrolet C1500 OBS truck with a complete QA1 Rear Suspension System, paired with a standard-width 9-inch housing and 31-spline axles. This system combines double-adjustable coil-over performance with straightforward wheel and tire fitment. The standard-width housing maintains the factory 65" wheel mounting surface width, making it easy to build around common wheel and tire combinations while maintaining the factory rear track width. FACTORY WIDTH FOR EASY WHEEL FITMENT The included 9-inch housing features a 65" wheel mounting surface width that matches the factory width. This makes wheel and tire selection more straightforward while maintaining the track width your OBS was originally designed around. The housing includes 31-spline axles, Big Ford New Style Torino housing ends with a 2.5" axle offset and dual 5x4.75" and 5x5" bolt patterns for compatibility with a wide range of brake and wheel combinations. MODERN COIL-OVER PERFORMANCE Replace the factory rear suspension with a performance-focused coil-over system designed to improve suspension control and give your OBS truck a more responsive, modern driving experience. DOUBLE-ADJUSTABLE COIL-OVERS QA1 double-adjustable shocks let you independently tune compression and rebound, giving you greater control over how your truck responds to different road conditions and driving styles. With 18 positions of adjustment for each, you can fine-tune ride quality, handling and traction for street driving or more performance-focused use. The included 200 lb/in. springs provide a firmer spring rate for trucks built with a greater focus on handling and performance.
- Build around your preferred wheels and brakes: Dual 5x4.75" and 5x5" bolt patterns and Big Ford New Style Torino housing ends provide compatibility with a wide range of combinations.
- Start with a complete, matched system: Suspension components, coil-overs, standard-width 9-inch housing and 31-spline axles are packaged together to simplify your build.
- Fine-tune ride and handling: Double-adjustable coil-overs provide independent compression and rebound adjustment for greater control over suspension behavior.
- Modernize your OBS suspension: Coil-over suspension provides greater suspension control and a more performance-focused driving experience.
- Easy wheel and tire fitment: Standard 65" wheel mounting surface width maintains the factory rear track width.
- Performance you can count on: QA1 shocks are 100% dyno tested and serialized.
Ships by Freight Truck
This item is too large or too heavy to ship as a normal package, so it travels on a freight truck instead of with UPS or FedEx.
The carrier will call you before delivery to arrange a time window, so please make sure the phone number on your order is one you answer. Someone needs to be there to receive it and sign for it.
Freight deliveries are curbside. The driver brings it to the end of your driveway, not into a garage or up a flight of stairs, so it is worth having a second person on hand for anything heavy.
Please allow extra time compared with a normal package. If you need an estimated delivery window before ordering, contact us through our contact page and we will find out for you.

