I suggest you try mounting them, then close the decklid. The leverage angle is such that it's difficult to tell off the car which strength shocks you have. The 'right' strength shocks will allow the lid to close easily without ripping it out of your fingers. Shocks for a winged car when added to a non-winged one, have been known to bend the roof where the hinges mount. All vendors carry these shocks (some even carry OEM shocks), so if there's a problem, simply call around
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