From the Eibach Teck Tips:

"Properly index your springs. If your suspension does not specify the clocking of the springs, be sure to index the spring, both left and right, in the same direction. This will ensure the car's ride height will be even left to right. "

I will have to ask the dealer if he did this...

h-techs are progressive springs? i think progressive springs have more "settling" issues than linear springs

^^^nope...h tech's are linear.

hmm strange. my Z springs are linear and i didn't notice any settling. drop from the minute the install was done til today, over a month later, is the same. maybe b/c the Z springs had 4k miles on them already... who knows

Just picked up a set of '06 Z springs from a My350Z member. Now to decide on whether to install the Tein H-Techs or the revised Z springs. I want a conservative drop. Decisions, decisions . . .

Z's what, .5" on the coupe? that's pretty conservative

Conservative? . . . That's me!

How about Tein H-Techs on front and '06 Z springs on rear?

I know this thread is like 2 years old. But I recently lowered on 350Z H-techs, the rear right-side is higher by 1/2 inch compare to the rear-left side too.

I've had my 6 dropped on 350 Htechs for a year. my front drover site is 1/4" lower. rear are perfect.

I know im a little late on this too but I measured from the fender lip to the center of the wheel. Driver front is 1/2" lower than passenger front. Driver rear is 1/4" lower than passenger rear. I had tokico d-specs and eibach pro kit installed by the dealer and its been about 3 weeks.

Ha! sounds like a lot of people have lower driver's side. My front is pretty even, just the rear have exact 0.5in difference.

Same here... I just lowered my 2004 sedan in 2008 350z NISMO tune suspension and the rear driver side sits 1/2 inch lower than passenger side. Fronts are even. Rear springs are progressive and front are linear. I've been thinking about looking for a really heavy guy and sit its *** in the rear and drive for a while to see if it level

so should I take it back to the dealer and have them maybe spin the springs and check it? I know i can only see one side of the car at a time but it still bugs me.

What i'm planning to do is swap springs in the back keeping the one in the lower side compressed when installing it in the other side. Will this work?