My diff just blew :(

[JAP-S2K]

Thanks for the info
And here I was about to fork out 80k yen for a Spoon final drive...

Don't be silly, where do you think they get it from? !?!?!

[aozora]

Don't be silly, where do you think they get it from? !?!?!

Haha I know now... checking out prices for a Mazda final drive from Japan atm
I suppose the questionable thing is whether it's worth cryo treating it?
I can't really find much information on what fails on the diff... I don't know if it's the final drive or some other component. Read through almost 17 pages of that thread including all the useless arguements :|

[WhiteAP1]

Well let me make it easy for you.

Its the crown and pinion that fails and you dont need to waste money getting you final drive from japan, Australian dealers are just as good. 4.44 from mazda and 4.77 from kia.

And cryo treating isnt a must, but it helps (I went with cryo treating)

[Age_S2000]

i was being stupid i droped the clutch attemping a launch from about 7 or 8k and BANG! she stoped on the spot lucky it was around the corner literaly so i pushed her home.

i baught the car in feb and i noticed a vibration i had done 10,000km with out doin a thing about it and god knows how long before that they were vibrating too so they wouldnt have been there best.

im getting new ones for $900 each and going to be buying T1R spacers from JDM Yard asap then putting them in all together.

[markis]

excuse my question but what does the T1R spacers do?

[JAP-S2K]

Spacers technically make the inner joint wear in a different spot, closer inside the inner hub, can/will eliminate rear vibration caused by excessive wear to the inner joint. This is common with lowered S2K's. Don't get the split T1R's though, there's been bolt failures under extreme driving condition's. So if you do buy the T1R items, also buy high tensile bolts, otherwise buy J's Racing spacer's.

[9large]

The drive shaft spacers actually attempt to straighten up the angles of the drive shafts for lowered vehicles so that it's close to stock. The T1R drive shaft spacers only come in half-sized spacers anyway - there are no "full-sized"/non-split T1R spacers. They did this for ease of installation.

Additionally, the failures that you mention aren't commonplace, and most can be argued to a be a failure of the installation rather than the spacers or the bolts themselves.

[JAP-S2K]

The drive shaft spacers actually attempt to straighten up the angles of the drive shafts for lowered vehicles so that it's close to stock. The T1R drive shaft spacers only come in half-sized spacers anyway - there are no "full-sized"/non-split T1R spacers. They did this for ease of installation.

Additionally, the failures that you mention aren't commonplace, and most can be argued to a be a failure of the installation rather than the spacers or the bolts themselves.

Really??? The spacer's straighten the the driveshaft angle. How does it do that?

For starters, the spacer is mounted between the driveshaft and diff. So it doesn't straighten anything, It makes the internal spider sit further inside the inner hub. That's all it does. A lowered S2K will still have a negative angle on the driveshafts regardless of whether it has or hasn't got spacers.

Correct in saying, failures aren't common. But they have had failures, I'm yet to hear of any by J's Racing. Correct me, if i'm wrong.

[9large]

Ok, that was my bad - try half shafts, not drive shafts. The spacers attempt to move the point of wear, close to stock, and I can tell you there was a difference in the angle of the half shafts when I installed mine.

From your description of the T1R shaft spacers, it doesn't sound like you've any experience with them - they don't come in one-piece and high-tensile bolts are actually part of the kit. Do you use spacers? There's been significant discussions about the merits of using shaft spacers, but eventually - even with spacers - your CV joints will wear out and you'll experience vibration. They won't eliminate vibration altogether, but alleviate it at best.

[JAP-S2K]

No experience with the T1R split spacers, but I know of a local failure. I don't think i posted of a solid T1R spacer. I know there's other shit brands out there!
I have J's Racing spacers, so i know what they do, and they definately don't decrease the driveshaft angle, only ride height will change that, unless you reposition the diff.
Anyhow back on topic.