QA1 Proma Rear Coil System (Single Adjustable)


QA1 now offers bolt-in Rear Coilover Conversion Kits for your vehicle.  These kits include specially designed the USA made mounting brackets and single or double adjustable aluminum shocks specific to 3rd and 4th Generation F-Bodies, springs and all necessary hardware.

Single adjustable shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1’s double adjustable shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for a total of 324 possible valving combinations. These shocks also utilize a fully threaded body allowing for ride height adjustability. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications.

With our highly popular adjustable struts and the addition of the Rear Coil-Over Conversion Kit, you can now get a complete suspension makeover for both ends of the vehicle.


Suspension Height Adjustment: 0.0-1.5 in. lowered
Coilover Kit Position: Rear
Shocks Included: Yes
Adjustable Valving: Yes
Internal Design: Twin-tube
Gas Charged: No
Number of Valving Selections: 18
Extended Length (in): 19.750 in.
Collapsed Length (in): 13.500 in.
Upper Mount: Eyelet
Lower Mount: Eyelet
Body Diameter (in): 2.000 in.
Shock Body Material: Aluminum
Shock Body Finish: Clear anodized
Bushing Material: Spherical bearing
Bushing Color: Natural
Coilover Springs Included: Yes
Spring Rate (lbs/in): 130 lbs./in.
Spring Finish: Silver powdercoated
Crossmember Included: No
Adjustable Mounting Bracket Included: No
Hardware Included: Yes
Welding Required: No
Quantity: Sold as a kit.
Notes: Single adjustable.