Intro
Hi Damien Brase with QA1. Today we're going to be putting a rear coil-over kit
on this Grand National. Got all the components that come in our bolt-on kit
some lower mounting brackets upper shocks springs new trailing arm hardware
everything except the anti-seize and the spanner wrench so let's get this put
together and get going.
Now that we've got the car up in the air. We're going to get the factory
replacement shocks out of here and then take the factory springs out neither of
these are going to be needed with the coil-over kit.
With the factory springs out now you can remove the factory trailing arm bolts
these are going to be replaced with the new ones included in the kit. You only
want to pull one side out at a time to prevent the axle from rotating. Put a
washer on the new bolt you're going to have another one underneath the nut as
well. And this bolt should line up just fine. The factory upper shock mounting
holes do need to be drilled out to 3/8 to work with the bolt supplied in the
kit. Once the holes are opened up to 3/8 now we're ready to put the upper
shock mounts in.
With the upper and lower shock mounts in place we can pull this bolt back out
put the shock in place with the knobs facing towards the center of the car.
Now that the shocks are installed we've got the ride height set we got everything
sitting back on the rack we got the weight of the car sitting on
the suspension now we can go ahead and tighten up the trailing arm bolts if we
don't do it at ride height that's going to cause binding in the trailing arms
and might not allow the car to sit down to ride height correctly.
Now you've how we install our QA1 coil-over kit on the G-Body. If you have
any more questions go ahead and give us a call or visit us at QA1.net.