This is how the rear shocks are mounted on the SV Coupe, I have QA-1 adjustables and the lower bolt hole is the same as the top, 1/2"
The coupe rear shock bracket is adjustable for ride height, is it the same for the Cobra?
Also I got a great deal on the shocks from
http://www.arundelchassis.com They sell QA-1 shocks on ebay and were great to work with.
Scott S