I have a sport model with the 18 inch sport wheels on factory suspension.
I want the rears to sit further out and be more flush with my fenders.
I searched spacers but most threads were about lowered and spacers.
Would spacers in the rear only work? If so, what mm size would look the best?
Also What brand is the best to go with? With all spacers do you have to buy new nuts (nismo ect...) ?


any advice will be helpful.
thanks in advance

 

Yes. You can install spacers only in the rear. But, IMO, it would look better with spacers both up front and in the rear. In fact, the front rims/tires are more tucked in than the rears anyway.

I'd recommend 15mm spacers at all 4 corners if you do not lower. If you do lower your car, I'd get 20-25mm spacers depending on how flush you want your rims/tires to be.

As for brand, Ichiba, H&R, Kics all sell good quality spacers.

There are 2 types - those that are a PITA to install, ie. need to remove each individual wheel bolt and install longer ones or the easier to install ones where the bolts are integrated into the spacer.

Regardless of what type you get, make sure you buy hubcentric and Nissan/Infiniti specific spacers as Nissans have a specific hub size and thread. Here's an example of a proper 25mm spacer for our cars:

http://cgi.ebay.com/ebaymotors/Ichib...spagenameZWDVW

Note the 66.2mm hub and the 12x1.25 thread which is Nissan specific.

When installing the spacers w/ integrated bolts, the most important thing is to take the rims off the car and re-torque the spacers after about 50-100 miles just to ensure they're properly seated and tightened.

This ebay ad shows the difference btw a hubcentric and non-hubcentric spacer:

http://cgi.ebay.com/ebaymotors/25MM-...spagenameZWDVW

 

Dude! 20-25mm spacers in the front. WTF! Maybe 5mm-10mm at the most! The wheels have to turn my friend! Edit - unless you plan on keeping your stock wheels; which then they will work, but might stick further than you want. Scared me for a sec with the "20-25mm."

 

My car is lowered on Eibach springs, the front wheels tuck A LOT. I could see 20mm in the front working. The rears actually don't tuck as much, 10-15mm would make the rears look flush.

As mentioned earlier you will need extended wheel studs for any spacer this large. If you decide to do it, please post pics! I have been debating spacers or G37 wheels for myself

 

I plan on keeping the stock wheels.
I just want the rears to sit out a little further.
How hard is it to put spacers on the rear? Cause i have heard that is is a SOB to put them on the front.
Also what is better ---> Spacers with studs built in or the ones you push in from the back?
So im guessing i will not need to get new wheels nuts.

 

JP1080INC - If you install spacers w/ the studs built in, they are VERY easy to install - just as easy as changing a spare. It is exactly the same for the front. Just remember to pull the rims after about 50-100 miles to retorque the spacers to spec!

You do not need to get new wheel nuts.


kmuniz78 - Relax buddy. 20-25mm is not a big deal at all. Here's a picture of my car w/ 20 mm spacers up front and in the rear. This is with M45 19x8.5 +50 rims w/ 245-40-19 tires. The stock G35S 18x7.5 +45 rims w/ 225-50-18 tires JP1080INC has will tuck in even further by 8mm than on my car:


As you can see, the front tires are by no means even close to sticking out past the fender. This is why I would go with +25 spacers if I had to do it again. My car is lowered w/ Eibach springs and I get absolutely zero rubbing on full suspension compression with the wheels fully turned.

If you still doubt it, check out ommmjido's car w/ 19x9.5 +35 rims up front. He says he gets absolutely no rubbing either. Ommmjido's set up would be the equivalent of running 35mm spacers on a stock G35S front rim. So, yeah, I think 20-25 is not ridiculous at all:

 

See my car above (black G)- 20mm spacers in the rear w/ no rubbing at all. They are camber corrected to -1 degree. If I didn't have a rear camber kit, they would look tucked in more. 20-25mm front and rear is fine for a lowered car.

 

BTW - If you don't lower your car, 20 mm spacers will make the front look pushed out just a bit past the front fender b/c the rims/tires are not cambered in. This is why I suggested 15mm spacers at all 4 corners if you're not lowering your car. If you search, there's a picture of an unlowered white G35 w/ +15 spacers front and rear and it looks just about perfect.

Here's a picture of my car w/ 20 mm spacers front and rear at stock height:

 

^ Thanks, tried searching for the white car - didnt find it.
are spacers with studs built in not as safe as the ones that get studs pushed through the back?

 

Arguably, spacers w/ studs are not as safe. But, in the various car forums I've been in, I've never seen people complain of spacers w/ studs failing. I have read how people who have spacers w/ studs installed by someone else had them come loose because they didn't bother to check and retorque the spacers.

If you google this topic, you will find all kinds of posts on off-road, 4WD forums where they run ridiculous 1.5" spacers on trucks w/ big tires and many have not had any issues at all.

As long as the spacers are properly installed (either type) and you get hubcentric ones w/ the proper thread length and pitch, they are safe.

Here's a link to JMN's car w/ +15 spacers, but his car is lowered:
https://g35driver.com/forums/2945787-post52.html

csdstudio's car w/ +10 spacers and unlowered. If you go with 10mm spacers, they won't have built in studs. Ichiba makes +15 spacers w/ built in studs. 15mm is the thinnest available w/ built in studs for easy installation:
https://g35driver.com/forums/2164681-post25.html

Found this link on installing spacers w/o built in studs - big PITA it seems like to me:

http://forums.nicoclub.com/zerothread/157760

 

i just recently picked up some ichiba 10mm spacers for mine. Installed them in the front a few weeks ago.

so now my rim/tire is effectively a 20x8.5 with 30mm offset. tire is 245 35.

no rubbing whatsover and now i am wanting to pick up some 20x9.5 rims 35mm offset running the same sized tire for a more stretched look in the front. all in an effort to increase the lip, close up the flushness, and match the look my rears already have. wish me luck

 

http://www.ichibausa.com/15albowhsp6.html

so i found these for the rear. I will not be lowering the car I just want the rear to sit out more. so im thinking the 15mm will be ok.
does anyone think it will look funny with me leaving the fronts the way they are?

 

I am relaxed "buddy."

 

For the spacers with built in studs, how is it that the stock studs, that stick out a little from the spacer, doesn't contact the rim. I don't remember what the mating surface looks like but will it accomodate the protrusion?

 

^ This should answer your question

Not sure if our wheels have the cavities or not though.