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Turbo LSD driveshafts.

 
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Sun Jul 30, 2017 5:59 pm    Post subject: Turbo LSD driveshafts. Reply with quote Reply with quote including images

It just doesn't end! Discovered some broken splines on the long driveshaft for my turbo swap.

Only need the long driveshaft, the short one should be OK with new boots.

Must be LSD.

ABS preferred, but by no means required.
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 8:48 am    Post subject: Reply with quote Reply with quote including images

why does it have to be LSD? Open diff shafts fit into the lsd box just not the other way around
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 8:55 am    Post subject: Reply with quote Reply with quote including images

Are you sure?
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 8:58 am    Post subject: Reply with quote Reply with quote including images

very much sure as they i have an LSD box with open diff shafts. Been that way for last 6 years.
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 9:08 am    Post subject: Reply with quote Reply with quote including images

Assuming this photo is accurate, I would have thought the opposite was true -



As the LSD ones have deeper splines and the longer machined section.
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 9:12 am    Post subject: Reply with quote Reply with quote including images

Trust me. I have been running them for yrs.

My car started as open diff, so i changed box to LSD box and used same shafts. 1 shaft (little one) even came from a GT four of same yr.

Open Shafts fit open box + LSD box

LSD shaft only fit in LSD box
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 9:24 am    Post subject: Reply with quote Reply with quote including images

Are you quite sure? everything I'm reading suggests the opposite is true.

http://www.mr2oc.com/61-3sgte-turbo/447263-lsd-non-lsd-how-guide.html

"Are LSD and non-LSD axles interchangeable?
Yes and No: You can use LSD axle stubs with a non-LSD transmission, but you cannot use non-LSD axel stubs with a LSD transmission.

"The main issue with swapping is that the splines (as you have observed) are not cut as far down the axle stub on the non-LSD axles (on the DRIVERS side), so the non-LSD stubs don't go into the OEM LSD differential far enough." -mr24u

"We put the LSD axles into the Non-LSD tranny last night and everything sealed up perfectly. Does not pop out or anything. mr24u, you mentioned the snap ring being further up on one version of axle, I have found that it doesnt seem to make a difference because the axle holds well (cannot be pulled out by hand, needs prybar). So I think we are in the clear on that." - ModifierMR
"
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 9:45 am    Post subject: Reply with quote Reply with quote including images

no i'm not quite sure. My shafts fell out every day for last 5 or 6yrs which is a right pain in the ass and emptied the gearbox of its oil ever hr which turns out to be pretty expensive but i now have shares in the manufacturer so i'm a little happier. LOL

Come on now, i have said for last 5 or 6 years, could even be longer i have been running open diff shafts in a LSD box with no issues whatsoever. I don't know if i could be more sure than that? [Think]

So to confirm 100%
Open diff shafts fit into and work correctly in a LSD box
Does not leak any gearbox oil
[Very Happy]
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 9:58 am    Post subject: Reply with quote Reply with quote including images

Everything I've read so far contradicts that. Given that what I've posted above states LSD driveshafts work in non LSD transmissions, are you 100% sure your car didn't have LSD driveshafts already?

They're clearly different and I'm not going to take the chance, LSD driveshafts only, thanks [thumleft]
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 10:11 am    Post subject: Reply with quote Reply with quote including images

I give up with you.

No my shafts are open diff ones as i compared them against LSD ones but was told by an MR2 specialist not to bother buying them as it was dead money as my shafts would and do fit the box and work correctly.

Don't also go down the route of getting them off a GT four neither as i'm guessing you will say they don't fit. In which case i will also rip out the GT four one i've had on my car since a two weeks after i bought car. (10yr+)

Why is it so hard to try and help MR2 owners? Sometimes i think banging my head against a brick wall would achieve better results.
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 10:14 am    Post subject: Reply with quote Reply with quote including images

No need to throw your toys out of the pram. I've read several accounts of the opposite being true (one of which is linked above) which is why I'm questioning it. That also makes sense with the splines being longer as well. If I buy a non LSD driveshaft on your advice and it doesn't fit, are you going to buy me an LSD one? I would guess not.
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alanmr2turbo




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PostPosted: Mon Jul 31, 2017 10:24 am    Post subject: Reply with quote Reply with quote including images

As i said i give up on you.

I know what i know and if everything you stated was true then i must have the only car in the world for the last 6yrs+ that don't need drive shafts to make my wheels turn. [Laughing]

I now bow down to MR2OC PMSL rather than the MR2 specialist that been around for 20yrs+

I will be sure in future to listen to them and spend 100-200 to buy shafts when i didn't need them.

Sod it, i'm gonna rip them out and buy a pair of LSD shafts now because they havent worked for last 6yrs+.

So lets change this list to:-

2 people requiring LSD shafts [Brick wall] [Brick wall] [Brick wall] [Brick wall] [Brick wall]
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Gazza_DJ
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Mon Jul 31, 2017 10:25 am    Post subject: Reply with quote Reply with quote including images

You give up, yet you keep replying [Laughing]
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