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.
Notes: Some welding is required. Leaf spring cars currently using ladder bars will require the use of a track locator to complete the installation. Designed to fit a 3" axle tube.
Order a Spanner Wrench and Thrust Bearing Kit (7888-110) for easy ride height adjustments.
Features
- Shock Type:
- Single-adjustable
- Position:
- Rear
- Shock Body Material:
- Aluminum
- Shock Body Finish:
- Clear Anodized
- Number of Valving Selections:
- 18
- Extended Length (in.):
- 16.875 in.
- Collapsed Length (in.):
- 11.625 in.
- Shock stroke:
- 5.250 in.
- Upper Mount:
- Spherical bearing
- Lower Mount:
- Spherical bearing
- Body Diameter (in.):
- 2.000 in.
- Internal Design:
- Twin-tube
- Gas Charged:
- No
- Springs Included:
- Yes
- Recommended Spring Diameter (in.):
- 2.500 in.
- Recommended Spring Length (in.):
- 12 in.
- Threaded Adjustment Range:
- N/A
- Hardware Included:
- Yes
- Spring Rate (lbs/in):
- 175-350 lbs.
- Spring Finish:
- Silver Powdercoated
- Recommended Rear-End Weight:
- 1,551-1,850 lbs.
- Suspension Height Adjustment:
- 0.0-1.5 in. lowered
- Adjustable Mounting Bracket Included:
- Yes
- Quantity:
- Sold as a kit.
- Notes:
- Welding Required. For use with 3.000 in. diameter axles. Coilover shocks are single adjustable Proma Star DS501 shocks. Springs are 12 in. variable rate 12HT175/350 springs. Includes a 1.625 in. O.D. x 0.095 in. wall x 40.000 in. long weld-in tube.
