Who's Right, Brother's or Eibach? Rear Drop Coil Springs

[ShortCST]

I went from Brother's 2" drop rear coil springs, at 33.5" from the top of the fender well to the ground, to Eibach 3" drop rear coil springs, at 31.375" from the top of the fender well to the ground.

2.125" difference in what should be 1.0" advertised height difference.

I've had Eibach coil springs before on a passenger car, which were advertised as dropping the vehicle only 5/8" of an inch, but dropped the car over an inch.

I've ordered a pair of Belltech 35323 1" polyurethane upper coil spacers to make up the inch, but I just wanted some input for confirmation, because my 2" front Hotchkis/3" rear Eibach coils sure look like a 2"/4" drop to me.

I spoke with the R&D guys at Eibach, who were friendly enough, but they said that in developing their springs, they only brought in one truck for the development.