350Z diffs Problems, what should i do?

[MrMartinGrant]

I hope this is in the right section.

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Hi guys and girls

 

I have a few questions,

 

I need advice from people who know what I should do.

 

Last week, me and my mechanic took of my diff, opened it up, took out the shim that was already in it, put in another shim same size and one extra shim, replaced the oil and put the diff back on.

 

Took the car out for some fun and OMG it was amazing, it was like driving with a 2-way or wielded diff, no give on either wheel, both were locking up lol,

The car was like a different animal, it went sideways, when I wanted and went where I wanted, when drifting and it would diff “donoughts†on command,

 

For example, sideways and 30 on a straight then accelerator off, drop speed to about 10 MPH, still sideways, flick the wheel in the other direction and floor it, into a diff, it diffed perfect both ways on demand and even into figure eights.

 

So her comes the bad news, you could not drive the car normally, trying to turn at slow speeds or park, was a nightmare, all you could hear were the wheel skipping and the car would jerk back and forward suddenly, as either wheel would skip, depending on which way I was turning.

 

I had to take the second shim out and now the car just wont do as I want, when I want to have a bit of fun, it’s one wheeling again, so when I try to drift or diff, only one wheel is spinning, most of the time.

 

My questions are.

If I put the second shim back in, so it will act like a two-way diff again, what’s the worst that can happen?

Could the diff more or less explode, destroying the diff internals?

 

If shimming is not the way to go, what do I do? There is no way, I’m forking out up to £1500.00 for a two-way diff that fits a 350Z.

 

Four of my mates have skylines and they picked up second hand 2-way diffs for around £200.00.

 

Surly there has to be some option, where I could use the internals from a 2-way diff, from a different make of car.

 

And just one other we thing, what I’m really looking for is a two-way diff that will lock up on acceleration, so turning and parking at slow speeds is not a problem.

 

Any help will be appreciated.

 

Thanks..

[paddy0d]

Thought the 350 had a viscous coupling in the diff.... couldn't you just get a thicker type of fluid in that?

[MrMartinGrant]

Thought the 350 had a viscous coupling in the diff.... couldn't you just get a thicker type of fluid in that?

 

yep it does, nope - thicker oil will not make it any better

[marzman]

Both my wheels spin when drifting in the zed, i have no problems

 

My BMW has an open diff, now that is 1-wheel spinning... surely you're zeds not like that?

[paddy0d]

Me too - have been on track days in my Z, and had no problem lighting up both back wheels

 

Perhaps the viscous coupling on your car is shot? Also, didn't some jap import cars not have the viscous coupling?

[showtime1]

i didnt know that the 350 had a diff i am a newbie so forgive me

[IanS16]

I don't have a clue what I'm talking about but if its an import maybe you don't have a LSD? I know my car definitely doesn't have the characteristics you are describing.

 

Maybe you could buy a UK LSD from ZMANALEX or R35LEE and swap it over? Pretty sure I saw one on ebay for around the £200 mark.