Differential bushing
 

Well, my diff bushing has given up on me.. wondering if anyone has changed theirs and to what? I'm debating whether to take it in to the dealer under warranty or upgrading to a better one.

http://i599.photobucket.com/albums/t...c/033680ef.jpg

Go oem. Everything else will have more nvh, or break. Went through that with my g20 pos and finally I just take it to the dealer for parts always and labor when special tools are needed and I can't do it myself. It's just better that way I have found, if more expensive.

How many miles do you have on your g37??

almost 18k

Hm, couldn't find anything else, guess oem is the only way, just wish it wasn't so weak

You should be able to get it under warranty, then later when something better comes out you can look into it.

Warranty is free no? :confused:

Is this a common issue?

welcome to the club!

is your G a daily driver? if it is, then i would have to say just get it covered under warranty. it seems like fairly common problem if you tend to drive your Z/G hard.

i had mine replaced under warranty. they replace the entire sub frame. id hate to know the price out of warranty!!

p.s. i dont drive my car very hard and mine busted.....

Nissan 370Z Forum - fuct's Album: oh-oh

Yea it is, I called up the dealer, its going in tomorrow. I guess the cars aren't ment to be driven hard??

Yup, same problem here. I hate how you can't just replace the bushing!

That's funny :icon18:

im hoping this is just a fluke in the production line and not an issue with using slightly stiffer suspension. i have tein springs that are a tad tighter. if so then im sure many others will have this problem too. our roads here suck and i might have just hit one too many BAD bumps and it broke. im hesitant to think the dealer would fix this twice..... :\

I don't think the Tein springs would have much effect on the bushing. IMO, high HP levels, hard launches and shifts would hurt the bushing far more than anything else. I've had a few friends with 350Z's break theirs and a few friends down here in FL do the same with their 370Z's. It seems to be common with both cars.

I contacted SPL about this. With some work/swearing the 350Z SPL bushings can be adapted to the 370Z/G37. They also mentioned that they will be releasing a set that fits the 370Z/G37 soon.

With that said, the SPL bushings are LOUD. Especially if you have a set of 4.08 gears, and/or a Nismo LSD. The 4.08 gears might whine a bit more than the stock gears, and this is magnified by the solid bushings. The Nismo LSD is a bit harsh to begin with, makes lots of noise when making slow tight turns (read: parking lot). This is also magnified by the solid diff bushings.

I would NOT recommend these for a daily driven car. But constantly breaking a stock bushing would also be irritating. Maybe some day someone can source/manufacture a solid rubber bushing.

Sub

So warranty decided not to cover it since i have aftermarket toe bolts. Somehow they wrote that the toe bolts may have caused this and that the subframe which needs to be changed for the bushing also includes the toe bolt area, which connects to the bottom spring tray. These mechanics are just something else..

We need someone to make aftermarket polyurathane ones! SPL is too much for DD cars.

In progress :) My Nismo is the 3rd test car!
They are urethane bushings with an aluminum sleeve.

Kickazz my good man, keep us informed...:tiphat:

Seriously keep us informed!

nissan said the bushing isnt replaceable..... i take it they were lying?

two things which i have not done with this car. ive been babying it much more than abusing it..... :\

The bushings are not replaceable with Nissan parts. Dealership sells as an assembly, no bushing alone.

I wish I knew about the urethane bushings a few weeks ago but oh well.

The stock bushing is a major PITA to remove. Installing a replacement bushing is PITA as well. Just got my Z back with SPL aluminum bushings, a review thread soon to follow.

Whiteline just revealed some at SEMA!

This just made my day, when is it going to be for sale??

I don't know if I should do this or wait for the whiteline bushings now. I think metal bushings will be a little too much for a DD

i would wait. mine isn't a daily driver so different story for me. the extra rubber padding helped though.

I'll have to do this before my next alignment

Whiteline ones should be for sale in the US end of November...

http://a3.sphotos.ak.fbcdn.net/hphot...85452034_n.jpg

For the 370z/g37 tho right? I saw on there site but it was only for 350z/g35.

yes for the 370Z/G37

Any information??

I will ask. I was told the 350Z bushings would fit the 370Z and they have announced the release of the product but they don't mention it fitting the 370Z/G37 only the 350Z/G35 so now I'm confused.

Alright, just talked to someone at Whiteline, the 350Z ones they just released WILL NOT fit on the 370Z. No official word yet on the release of 370Z specific ones. :(

I'm sure they can modified to fit our cars.

Man... I'm itching to get these bushings when they become available. The 1-2 shift wheel hop under boost makes it difficult to get much traction.

I'd like to use a product like this in conjunction with the bushings:
Sound Performance – Blog Blog Archive SP 350z/G35 Differential Brace

i have the same thing shown on my differential... and i was told by the dealer thats normal if you drive your car hard.. and that i don't need it to be replaced.

also, i'm alrdy out of warrenty... i think i alrdy drove over 10k miles on it, and it drives fine, but should i be worried??

i dont see how a broken bushing leaking fluid it needs to perform its job properly would be considered normal.....:confused:


i could feel a major stiffness increase once mine was fixed. i couldnt tel you how long it was busted, but i sure knew when the new one went in. just sayin

thank you for the reply... i will look more into it.

I could definitely feel it when the bushing was broken. Especially on a really hard 1-2 shift. Not sure how much the diff housing would move with the broken bushing but sometimes it felt like the stud on the rear cover was hitting something on hard shifts. That can't be good.