QA1 RCK52464 Rear Pro Coil Big Wheel Coilover Kit MOD Series 250 lb. Springs

The QA1 RCK52464 Rear Pro Coil Kit is a bolt-in rear coilover conversion system engineered specifically for 1977–1996 GM B-Body vehicles running big wheel setups. This kit replaces the factory rear suspension with QA1's high-performance MOD Series adjustable coilover shocks and 250 lb./in. rate springs, delivering a fully tunable ride with ride height adjustability — achieving up to 1/2" higher than stock down to 2-1/4" lower than stock.

QA1 MOD Series Shock Technology:

• QuickTune™ Technology — interchangeable dry modular valve packs that swap out using only a hex key or Allen wrench while the shock remains on the car
• 4-way adjustable valving — independently adjustable low-speed compression and rebound for precise tuning
• Medium compression and rebound valve packs included standard; soft and firm packs available separately
• Nitrogen-charged canister in piggyback or remote configuration for tight installation clearances
• Indexable base eyelet allows repositioning for optimal shock and canister placement
• Fully threaded aluminum shock body for corrosion resistance and lightweight durability
• 100% dyno tested and serialized at QA1's Lakeville, Minnesota facility

Kit Features & Specifications:

• Spring Rate: 250 lb./in.
• Springs included: Yes
• Vehicle Position: Rear
• Shock Valving: MOD Series
• Designed for big wheel applications — accommodates up to 26" wheels
• Adjustable ride height: up to 1/2" above stock to 2-1/4" below stock
• Bolt-in installation — no cutting, welding, or grinding required
• Includes specially designed mounting brackets and all necessary hardware
• Sold as a pair
• Made in the USA

Ideal for pro-touring, street performance, drag racing, and custom big wheel builds, the RCK52464 delivers the tunability needed to dial in the perfect stance and handling balance. Backed by QA1's limited lifetime warranty.