Dodgerunner has it right but I choose to anchor the hold down straps to a large tree with a tow strap. I then ratchet the torsion spring away from the holding pin and pull the holding pin out. Then I release the strap ratchet and relax the torsion springs . At this point they can be removed safely by hand. If you use this method there is little to no chance of breaking the rear window.
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "