Which size on spacers is recomended for 6gc? Options

[Iceman22]

Hello.
My friends whine about that I need spacers on my car, now they convinced me and I want spacers =P
I found these on ebay that are bolt-on that is quite nice.
These are the following sizes available: 15-20-25-30-38 mm
I got a feeling that 30mm will be good, but what do you guys think ??
I can have up to 38mm because the car is not low enough so it will come in the way, but 38 I think will be to much ?
2nd question, will it be best to have spacers on all tires, or will it be okay to have them in front only?
Here is some pictures how it is stock:

rear:


front:


This post has been edited by Iceman22: Sep 25, 2011 - 3:33 AM

[Iceman22]

Sorry forgot to mention, the ET is 40.

Since yours are 7.5" as well, I'd say it's a pretty good chance that you're sitting with ET45, because they look about as sunken in as mine. My advice would be, unless you absolutely adore those wheels, get a new set with a better offset. Your wheels will need big spacers to make them close to flush and it'll kill your wheel bearings.

If your wheels ARE ET45, you'll need 30mm worth of spacer in the front and 47mm worth of spacer in the rear to make them completely flush with the fenders. A lot of people are not into that, but those numbers give you an idea of what you'd need.

A new set of wheels is not a option.
Do you still recomend 30mm in front, and 47-50mm in rear for ET40 ?