Hi,

I really like how my G35 Coupe with Sport Suspension drives. But as the car has aged the suspension is getting worn and needs to be replaced. I am no Engineer and would not like to try and one up them at their own game. So I am replacing my aging Suspension with OEM parts.

OEM has lasted the car since June of 2005. I drive spirited in the corners and like to utilize its massive grip to my advantage.

So what parts needs to be replaced?

I bought new old stock springs off a user here, thanks G35fromPA.

SO what other components would be worn and affecting my cornering?

Sway bars, struts, control arms, ball joints, am I missing anything? And in the interest of price checking my local dealership has a really good database of all the parts and part numbers including prices they offer for them. So I am able to cross reference part numbers with newer part numbers that have replaced it.

But it is also a bit confusing with it being listed, and having each part its own page, but also having kits and complete this and upper that, and lower this. Its like, ok tell me whats included and whats not. So I know what to order and what not to, so I dont have duplicates and overpay.

 

Start with this list.
LoSt180 Suspension Overhaul

 

sounds cool thanks

 

If you haven't done it already, put in a poly rear differential bushing.... Whiteline has a good reputation but there are several manufacturers that make comparable products. That's one thing that you SHOULD re-engineer as the stock ones are terrible.... any engineer should know that a fluid filled rubber bushing won't last.

 

Love that you made this.

Re engineer it because the manufacturer will only sell you the subframe with it in it haha. Definitely changed how the car felt for me. It seems to glide along now too.

 

Personally on the G35 I wouldn't even consider OEM replacement bushings for ANYTHING. You can buy the Energy Suspension master kit for this vehicle for a little over $500 and it feels MUCH better than stock and lasts much longer. An OEM replacement bushing is only going to last you about 80k miles for all the heavy wear items before they're starting to get sloppy again, urethane has about double that life expectancy under normal driving conditions which will probably be the life of the chassis.

The stock sport suspension already has a firm yet luxury feel to it and the urethane bushings is simply the icing on an already immaculately crafted cake. This suspension benefits GREATLY from upgraded components like this with nothing sacrificed so the choice is pretty obvious.

If you are hell bent on using OEM rubber that's your decision but you DEFINITELY want to replace the rear differential bushing with urethane and you should seriously consider the front upper control arm bushings as well since they are a high wear items that only get about 60k miles on the OEM rubber.

 

When I had my G, I replaced the front upper and lower control arm bushings with the Whiteline bushing kit (https://whitelineperformance.com/col...03-bushing-kit) and they were great. No increase in NVH or decrease in ride quality at all; just much tighter feel and the like new feeling again. I replaced the compression rod bushing with OEM since I didn't want to add any harshness for the street, but Whiteline offers these (https://www.z1motorsports.com/suspen...ng-p-5797.html) and there are some other bushing options out there as well, such as the Energy Suspension bushings: https://www.z1motorsports.com/suspen...gs-p-5193.html

Going with harder diff bushings will feel great on smooth roads, but keep in mind it could add some noise in the cabin as more of the driveline noise will be transmitted to the car.