Orbie

Excellent joeposter, exactly the news we were all waiting on. Some of us have the exact same setup for our coupes from Tirerack. I've been waiting to pick up a hydraulic jack and torque wrench before I put mine on, as my tires have been sitting in my garage for a week and a half already. Probably won't have time till today, but from the forecast doesn't look like much snow will be flying for the next two weeks. Also in regards to the bolt on the front rotor, I believe the G35C's also had this and yes it was to prevent the rears from being mounted on the fronts.

joeposter

Yes.

The sensors were an extra $362 from tirerack so I skipped them. The warning light took a while to come on and seems to blink for a while each time you start up. Overall it's pretty small and doesn't bother me much.

Yeah, I verified this in the service manual.

Comatose

Great Stuff!! Do you mind throwing up some pics of the entire car with the rims on it??

bostonmerlin

my tires came in a few weeks back. i'm holding off until it stays consistantly cold here in Boston before switching them out with my summers... but today i wanted to make sure they were going to fit so i used my new low profile floor jack (From sears) to lift her up and slap one of those winters on. They look good and it appears to fit w/no problems (i.e. no brake clearance issues). Make sure you follow instructions as you need to put the tires on with the arrows pointing forward.

Instructions that came with the tires state there is a round insert placed into the wheel well which has to come off when you take your winters off next spring... i'm not sure why that insert is in there.. if anyone has an answer to that let me know.

john

new floor jack from sears.. fits under the car perfectly.
http://www.sears.com/shc/s/p_10153_1...ls&cName=Mecha nics+Tools&sName=Lift+Equipment

bostonmerlin

i dont see this big a$$ bolt in the pictures from the post above. this is a shot from my rear left calipar. i dont think that bolt in the center is causing any problems.. though it feels like its night as snug when i test fitted my tire.

at first when you guys were talking about removing a bolt i thought it was this big center bolt.. though it looks like it keeps things together. Thoughts? Looks like it should stay on to me and i dont believe there are any clearance issues with it but when i threw my winter tire on it didnt feel as snug as i think it should... maybe just me... prob!


another question.. do i need to mark my summer tires with where to put them back on next spring? i didnt see any arrows marking the direction of the tire..

thanks
john

joeposter

@bostonmerlin:
If you have the sports package, the front rotor has the bolt to prevent the rear wheel from being put up front.
I always mark which wheel went where but with the sports package it's pretty obvious. The 45's go up front with the 40's in the back. Then the tires are directional so you know which side they go on.

@Comatose:
This is the best pic I could come up with. There's also one of the warning light to show that it's not that big of a deal.

G37RacerX

John,
I'm thinking maybe you are describing "hub concentric" rings, I think that's what they're called. If your wheels came with 4 rings, approx. 2 inches in diameter, try putting them in the center portion of your rims before you mount them. Or, alternately, put them on the ring around the large nut in the center of the brake rotor... If my guess is correct and they pop right in, your wheels will fit snug the next time you mount. The big nut stays.

Regards,

Ron

shumby

iTrader: (3)

I put 118" winters on mine low pressure light came on i went back to the tire place they told me the dealer had to reset the sensors. Turns out they were right dropped the car off at the dealer and 30 mins later sensors reset and i was on my way free of charge. Thanks erickson infiniti of edmonton.

bostonmerlin

thanks racer.. those rings came installed in each rim.. sort of loose and can rotate around. instructions that came with the rims from tirerack state those rings must come off the rotar area if/when you switch out with other tires. just not sure what they're for.

Orbie

Yeah basically they're just 4 plastic rings, their purpose is exactly as the name sounds, they allow for the rim to mount exactly centered on the hub of the axle on your car. The center bore of the rim is larger than the hub on your car, thus if you were to try to mount the rims without it, you could be mounting them off center and thus your car will ride very rough with alot of vibration which obviously could be very dangerous. You will see this alot if you buy aftermarket rims because 9 times out of 10 the manufacturer is producing the rim for universal fitment.

The rims that came specifically on your G37 were made to fit the car perfectly. This is the reason why you must ensure the centering rings are pulled off the hub of the car before you mount your O.E. rims back on. If you don't, first you'll notice that once you mount the rim it won't fit flush against the car, next you'll notice that no matter how much you tighten the bolts the rim will still be loose. Each of these things is obviously very dangerous if you drive like this. The centering ring is preventing a flush mounting, as the O.E. rims where designed for the exact size of the hub. If you continue to try and tighten the bolts you'll eventually hear the 'crack' of the plastic ring being crushed against the car. Then you'll have to go out and buy another one when you re-mount your aftermarkets. It's important to note although the rings might appear snug on in your rims right now, it is very possible that when you take the rims off the ring will stay on the hub and not come off with the wheel, so Tirerack is just making sure you check for that.

InfinitiFreak

^^^ Thanks for the info, I was wondering what that ring was for also!!

G37RacerX

Cool, glad I could help. Maybe you can post a couple of pics with your winter setup after you install them...

bostonmerlin

GREAT response.. thanks for taking the time!
john

cyberjock4hire

Thanks for the info in the replies. I ordered my winter tires from Tire Rack this morning and knew exactly what to expect. Gaining this type of knowledge prior to making a decision is probably one of the most valuable tools that the internet provides. Thanks, and I am certainly glad that the tire pressure warning does not activate a buzzer. I felt no need to spend the extra $400+ on the tire pressure sensors.

DEC1

Couldn't agree more. These guys (and gals) are very helpful, friendly and knowledgable and have really created a great resource for all of us.

Please keep us posted on your driving experiences in the white stuff with your G37....either here or on the other thread called "winter driving"

I haven't yet purchased a G but fully intend to in the Spring. Your experiences and willingness to share them will help me and others make the right decision and know what to expect.