Looking for a custom coil-over setup? This kit uses a weld on lower coilover mount that fits 3" OD tube stock. The brackets have adjustability up and down in addition to the coil-over adjustability.  The upper mounts weld to the provided crossmember. The tabs and bar need modified and welded to fit your specific application. This is a great fit for drag racers looking for specific suspension geometry where there isn't a bolt on application to fit your needs. 


Upgrade your rear end with QA1's Pro-Rear System. Available in double adjustable, single adjustable and ride sensitive valving non-adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro-Rear Systems are commonly used in drag racing, street performance and street rod applications. Available in Simultaneous Compresion and Rebound Single Adjustable (DS), Independent Compression & Rebound Double Adjustable (DD) or Ride Sensitive Non-Adjustable (ALN) Coil-Over Lightweight Aluminum Ride Height Adjustable Spring Mounting Hardware Included 100% Dyno Tested and Serialized Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers Precision Machined Aluminum Piston with PTFE Piston Band 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod Three Step Sealing System Available to Fit 3" or 3.25" Diameter Axle Tubes Made in the USA Kit includes: (2) Proma Star Shocks or Aluma Matic Shocks (2) Linear or Variable Rate Springs All Mounting Hardware.


Pro-Rear System Single Adjustable

SKU: DS501-12150

Adjustability : Single Adjustable
Spring Rate (rate/in) : 150
Axle Tube Diameter : 3 inches



QA1 Weld-In Coil-Over System SKU: DS501-12150

SKU: DS501-12150