Easy Bolt-In Installation:
Minimal modifications needed. Remove the existing shocks and springs and the QA1 Pro Coil System bolts right back in.
Specially Designed Conical Springs:
The spring is designed so that the lower end sets on the coil-over shock and the upper end sets in the original spring bucket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud.
Adjustable Ride Height:
Threaded aluminum body allows ride height adjustment.
These shocks are re-valveable and re-buildable by QA1 Authorized Service Centers
The QA1 Pro Coil System utilizes the Proma Star® single and double adjustable shocks.
The Pro Coil System includes:
2- Proma Star® coil-over shocks
2- specially designed conical springs. Two progressive spring rates are available, based on small block (250/350 lbs.) or big block (365/465 lbs.)
All Mounting Hardware