QA1 Mopar Rear Coilover Conversion Systems R155-175

QA1 Mopar Rear Coilover Conversion System – Upgrade Your Classic Mopar’s Suspension! The QA1 Mopar Rear Coilover Conversion System (R155-175) is an all-in-one solution to transform your classic Mopar A, B, or E-Body muscle car into a high-performance machine. This bolt-in triangulated 4-link rear suspension setup improves launch traction, ride comfort, and adjustability , giving you the perfect stance and modern handling feel . Designed for street performance, autocross, drag racing, and pro-touring applications! Perfect for classic Mopar owners who want better suspension geometry and adjustability! What’s Included in the Kit? ✅ Rear Coilover Shocks (Single Adjustable) – Tune your suspension for ride comfort or performance ✅ 175 lbs./in. Coilover Springs – Optimized for street & track driving ✅ Adjustable Upper & Lower Trailing Arms – Dial in wheelbase, traction, and handling ✅ Trailing Arm Mount Braces & Hardware – Reinforces chassis for added stability ✅ Clearance for 3” Over-the-Axle Exhaust – No need to modify your exhaust system ✅ Supports Standard & Inboard Spring Locations – More flexibility in suspension setup Upgrade your Mopar’s rear suspension with modern 4-link geometry and coilover adjustability! Technical Specifications Feature Details Brand QA1 Manufacturer Part # R155-175 Product Type Rear Coilover Conversion System Suspension Design Triangulated 4-Link Rear Shocks Included? ✅ Yes (Single Adjustable Coilovers) Coilover Spring Rate 175 lbs./in. Spring Finish Black Suspension Finish Black Powdercoated Bushings Included? ✅ Yes (Spherical Bearings) Adjustable Upper Trailing Arms? ✅ Yes (Double Adjustable) Adjustable Lower Trailing Arms? ✅ Yes (Single Adjustable) Supports Axles Mopar 8 3/4″, Ford 9″, Dana 60 Ride Height Adjustment? Yes Exhaust Clearance? Yes (3” Over-the-Axle Clearance) Installation Type Bolt-On (Minimal Welding Required) Sway Bar Included? ❌ No (Optional Add-On) Panhard Bar Included? ❌ No Quantity Sold as a Complete Kit ⚡ Achieve modern performance while keeping your Mopar’s classic style! Fitment & Compatibility ✔ Designed for Classic Mopar A, B, & E-Body Vehicles ✔ Compatible with Mopar 8 3/4″, Ford 9″, and Dana 60 Rear Differentials ✔ Works with Standard & Inboard Spring Locations ✔ Supports Large Wheels & Tires with Wheelbase Adjustments Ideal for both street and track builds! Installation Notes & Tips Minimal welding required – Mostly bolt-in for easier installation ⚙️ Provides better suspension geometry & weight distribution Allows fine-tuning of pinion angle & wheelbase for maximum performance For best results, pair with QA1’s front coilover conversion system ⚠️ Professional installation recommended for optimal performance! ❓ Frequently Asked Questions (FAQ) How does this system improve handling? The triangulated 4-link design and coilover shocks enhance traction, stability, and ride comfort , reducing wheel hop and increasing control during acceleration and cornering. What rear axle does this kit support? This kit is designed to work with Mopar 8 3/4″, Ford 9″, and Dana 60 rear axles . Do I need to modify my exhaust? No! This kit is designed with 3” over-the-axle exhaust clearance , so you won’t need to alter your existing exhaust system. Is welding required? Minimal welding is needed. Most components bolt directly into place for easier installation. Can I install this kit myself? Yes, if you have experience with suspension work. Otherwise, professional installation is recommended for best results. Does this kit include a sway bar? No, but an optional rear sway bar is available separately for added stability and cornering performance. Call to Action – Upgrade Your Classic Mopar Today! Transform your Mopar’s rear suspension for modern performance and adjustability! ✔ Triangulated 4-Link Suspension for Maximum Control ✔ Adjustable Coilovers for Custom Ride Height & Handling ✔ Compatible with Multiple Axles & Large Wheel/Tire Combos ✔ Bolt-In Installation with Minimal Welding Required Order Now & Experience the Ultimate Rear Suspension Upgrade for Your Mopar! Overview Brand: QA1 Manufacturer’s Part Number: R155-175 Part Type: Rear Suspension Packages Product Line: QA1 Mopar Rear Coilover Conversion Systems Summit Racing Part Number: QA1-R155-175 UPC: 806990163134 Third Member Included: No Axle Shafts Included: No Upper Control Arms Included: No Lower Control Arms Included: No Air Bags Included: No Rear Shocks/Struts Included: Yes Rear Shock Type: Single adjustable coilover Coilover Springs Included: Yes Coilover Spring Rate (lbs/in): 175 lbs./in. Spring Finish: Black Suspension Package Finish: Black powdercoated Bushings Included: Yes Bushing Material: Spherical bearing Sway Bar Included: No Watts Link Included: No Panhard Bar Included: No Adjustable Panhard Bar Included: No Upper Trailing Arms Included: Yes Adjustable Upper Trailing Arms Included: Yes Adjustable Upper Trailing Arms Type: Double adjustable Lower Trailing Arms Included: Yes Adjustable Lower Trailing Arms Included: Yes Adjustable Lower Trailing Arms Type: Single adjustable Trailing Arm Mount Braces Included: Yes Trailing Arm Hardware Included: Yes Rotors Included: No Calipers Included: No Quantity: Sold as a kit. Notes: Kit for use with Mopar 8 3/4 and Ford 9 in. rear differentials.