3.3TT Lowering springs uneven

[Wan El Guapo]

So i had Eibach lowering springs installed a year ago. I never measured the drop but they looked about equal to me on my awd. Today i noticed the passenger side rear was lower by about 1/2 to 3/4 of an inch compared to the driver side rear. Fronts looked even. No other noticeable differences in ride and handling.
What is likely to have caused this?
Should i be concerned?

 

[Jayphil]

Where you in a really even surface such as a garage to mesure this with the car empty of anything? If so that is a big variance. Place your car in a good even spot and mesure from ground to fender on all corners and report back!

 

[Wan El Guapo]

Did what you suggested and measured parked in the garage. Passenger is still lower but by about 1/4 inch, which isnt so bad. Thanks

 

[MerlintheMad]

Did what you suggested and measured parked in the garage. Passenger is still lower but by about 1/4 inch, which isnt so bad. Thanks

I bet that OE springs have at least a quarter inch of variance. But I'm not going to seek out a totally even surface and then go around measuring to the top of each wheel well to find out. Hah! I try to not scrutinize my lovely ride that closely. This is sort of like mawwiage: "Go into mawwiage with your eyes wide open; and afterward with your eyes half closed. " If I can walk up to my car from any angle, and nothing snags my eye, then nothing imperfect is serious enough to worry about (leave the tape measure at home).

 

[sting me]

I wonder if it's higher on the driver's side to compensate for the fact that there's always a driver when the car's in motion?