Spohn Q-HS-R-D607SK-CO User Manual
Spohn performance, inc, Instructions
Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
QA1 Front Struts – Spindle Modification Instructions
1982-1992 GM F-Body
USE OF THIS PRODUCT IS ACCEPTANCE OF SELLER’S DISCLAIMER OF WARRANTY!
By their very nature, competition components are constantly pushed to their limits. While our components are designed to
withstand intense race conditions, it is impossible to control the quality of installation or the varying conditions in which
they are used. It is for this reason that absolutely no warranty or guarantee is either written or implied. Neither the seller
nor the manufacturer will be liable for any loss, damage, or injury – direct or indirect – arising from the use of or inability
to determine the use of any product. Before using, the user should determine the suitability of the product for its intended
use, and the user shall assume all responsibility in connection therewith. Spohn Performance, Inc. makes no guarantee as
to the legality for any specific class. Spohn Performance, Inc. makes no claims, nor does it intend its products to be used
in street driven vehicles. Spohn Performance, Inc. reserves the right to make changes in design or add to or improve on
their product without incurring any obligation to install the same on product previously manufactured. The Buyer agrees to
indemnify and hold Spohn Performance, Inc. harmless from any claim, action or demand arising out of or incident to the
Buyer’s installation or use of products purchased from Spohn Performance, Inc.
INSTRUCTIONS
Important Note: Do NOT push the piston rod into the strut body as it will go past the seals and will need to be sent to
QA1 for reassembly. This will never be an issue after installation on the vehicle, and is only a concern if an individual
physically pushes the piston rod to that point. If this were to occur, it is not covered under warranty. There is a Left and a
Right strut (part numbers on box end in L and R). When installed correctly the adjustments knobs will point towards the
front of the car. Mount the QA1 strut with the coil over sleeve installed. Screw on the jam ring first and then screw on the
spring seat ring. Place a thrust washer on the base of the spring adjuster seat, then place a Torrington thrust bearing on
top of the washer, and finally place a thrust washer on top of the bearing (washer, bearing, washer). Slide the coil over
spring over the strut and down on to the washers/bearings on the seat of the spring adjuster.
The instructions below are for the spindle modifications that are required to install the following parts: Q-HS607SK, Q-
HR607SK, Q-HD607SK, 737-QS, 737-QR, 737-QD, 738-QS, 738-QR and 738-QD.
In order to install the QA1 adjustable front struts for the 1982-1992 GM F-Body Camaro and Firebird some grinding or
machining of the factory spindles is required to gain clearance with the QA1 strut. We have found that the easiest method
to do this is with a hard wheel grinder. It is not a major project, in fact with the factory spindles removed from the car it's
a job that will only take a few minutes to complete.
The first thing we want to point out is that there are two different types of factory spindles for the 1982-1992 F-Body
Camaro and Firebird. There is what we call a "light" spindle and a "heavy" spindle. We're not sure of the exact year range
for each type spindle, but we're guessing that the 1989-1992 cars have the heavier spindle, although some earlier years
may as well. The heavier spindles have some more meat to them and will require an additional area that needs to be
ground. Let's get started.
No matter which type of spindle you have, you will need to grind for clearance of the bottom black adjuster housing on the
QA1 strut. If you hold the QA1 strut on the stock spindle you will notice that the bottom mounting bolt hole will not line up
with the bottom mounting hole in the spindle because the black adjuster housing on the bottom of the QA1 strut is
contacting the spindle. Holding the strut in place, mark the area of the spindle where you need to grind it down for
clearance as shown below.
If you have the heavy spindles you will also notice that the top mounting hole in the QA1 strut doesn't quite line up with
the top mounting hole in the spindle, just enough that you can't get a bolt through. If you have the heavy spindles you will
also need to slightly grind the top radius area of the factory spindle as shown below.
No matter which type of spindles you have, the small amount of clearance grinding that is required will not effect the
strength or integrity of the spindles. You are only removing a small amount of material. The spindle modifications required
for 1LE front brakes remove much more material from the spindle and people have been doing that for decades without
any issues.