Okay I did do a search on this and I got a partial answer. So yes, the GSX has different rears than our cars, all the part numbers say so. Does anyone know excatly how they are different? All I've read is that they are "stiffer" because the back end of the GSX is heavier. This is not good evidence, though it is good logic. Does anyone have spring rates or dampening rates for the two models on any shock and spring? TIA, points are available.

Avery

The rear springs are thicker and are lower then the the fwd eclipse's rear springs.

I don't have actual tech specs, but from what I know, they fit in fwd models, just that the spring rates and things wouldn't be optimal.

I have no idea about the strut/shocks.