i have researched this and came to the conclusion that i need 10mm front 5mm back. i did the tape/quarter trick and measured from tire to fender front/back, and came up with those measurments. im just wondering if that seams right? bigger spacers needed up front? my front fenders are rolled. im dropped 1.8 on eibachs. the wheels are all 20 offset . i just dont want to fork over $200 for spacers if something isnt right. i just dont want any tire shreading.....but i gotta get these wheels out a bit. thanks. any advice tips tricks etc?

 

Moved to proper forum

Did you read through the Spacer FAQ at the top of this forum...

https://my350z.com/forum/wheels-and-tires-60/