don't know much about spacers....
can i use 10mm h&r spacers with out studs or will the lugs not have enough thread.
thanks in advance

 

With 10mm and stock studs you will be able to get about 5 or so turns which IMO is not enough to be safe.

 

Do they even make 10mm's without stud replacement?

 

Not sure but you could just not replace the studs even if they came with it.

 

i would get longer studs... just think if you run spacers the stud will have a wheel that has pressure in place closer to the end of the stud. I just worry about that one bump you hit and the stud just breaks

 

Get the H&R with the studs built in. the work the best, and come with hubcentric ring. if you dont hubcenter it you just gonna get vibration. Wheels on G37 dont get centered by the lugs, you need the hub ring. and you should run 20mm front and 25mm rear with eibachs making the assumption you are running stock wheels. I had that setup and looks flush with no rubbing with stock tires.

 

Good to know

 

i can't get the spacers with built in studs. my wheels don't have the indents in the back of them. i have to get spacers and install the extended studs. which spacers should i get and do they come with all necessary hardware?
ichiba version 1?
h&r?
or eibach for the 350z?

 

anyone with any of these recommend them?