The Gearbox & Diff thread

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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

wagonist wrote:Seems like an LSD is quite a common option for the FTO. Is this correct?
And how hard to find?

Is there any way to find out how different the FTO box is to the US spec Eclipse? Quaife sell brand new Torsen/Helical diffs for both the V6 FWD & front diff of the AWD turbo.
Some bright spark figured out that the latter one (ie front diff of the AWD box) fits the Hyundai Elantra box 8O (which I've now fitted to my Excel).

I've still got the factory open diff of the Elantra at home to take some measurements if that'd help.
Its identical to the 3rd Gen Eclipse... which is also the same as a 3rd gen Magna.

I was going to put a Quaife in my box, but they're too damned expensive, Wavetracs are where it's at: http://www.wavetrac.net/technical.htm

Can get them landed here for under a grand ($900 aus.) I put one in about 12 months ago & never looked back. Full details here (3 or so pages of it)

viewtopic.php?f=22&t=15644&start=920

Original Quaife design for the 2nd gen Eclipse. 3rd is the same, just reversed (gearbox on other side)

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Putting Wavetrac in

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wagonist
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Re: The Gearbox & Diff thread

Post by wagonist »

Cheers.
I bought my Quaife out of California (when the A$ was a little better) for $1050 including postage & a speedo gear.
Out of the UK was a lot more expensive :?
daily driver:Toyota Caldina GTT manual
weekend racer: Hyundai Excel, Elantra 2L HVT engine & gearbox, Mitsi Eclipse LSD, FTO rear brakes, Mivec FTO front brakes
https://www.dropbox.com/sh/43b8k0fus8uu ... %20527.JPG
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Yeah the pound exchange rate has never been real good :lol: Mind you, was a lot worse a few years back! I remember buying bits for my Mini when it was 33p to the $1 :?
tris2k7
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Re: The Gearbox & Diff thread

Post by tris2k7 »

Hi I'm new to the forum and "posting" in threads, ive been searching with no joy for 4 weeks now for a drivers side driveshaft for my Fto, I recently obtained a gearbox from eBay and installed it in my car, on re inserting the driveshafts I found it had an LSD installed (well at least a bar runnin through, visible from the passenger side easily) I was told to find out the gearbox code which is F5M42 2V7A1 AA3109 according to this page viewtopic.php?f=10&t=24245&hilit=gearbo ... d&start=20 the 2V7A1 shouldn't have an LSD, how can I obtain a driveshaft (I don't have the chassis number from the donor car of the gearbox) PEASE HELP ME my cars a gpx v6 manual 1995 fto
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Re: The Gearbox & Diff thread

Post by wagonist »

The bar doesn't mean it has an LSD.

Where is the driveshaft that should be in your car? Do a search for driveshafts in the Yellow Pages and take your driveshaft to them to match it.
daily driver:Toyota Caldina GTT manual
weekend racer: Hyundai Excel, Elantra 2L HVT engine & gearbox, Mitsi Eclipse LSD, FTO rear brakes, Mivec FTO front brakes
https://www.dropbox.com/sh/43b8k0fus8uu ... %20527.JPG
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Taz
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Re: The Gearbox & Diff thread

Post by Taz »

i now have 2 sets of driveshafts, one of which i have just pulled from a 96GPX
If you want it, 25+postage and its yours

Unless it has an aftermarket LSD fitted it should fit fine (or have you already tried a regular driveshaft?)
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Correct, seeing that bar through the centre means it has a standard slip diff.

So the more common longer length stub axle will fit, however you'll need to determine what diametre version you need.

There were 2 types used, the 25 splines (26.6mm shaft dia) and the 27 spline (28.5mm shaft dia) which were seemingly used in any old box by Mitsubishi with no way of understanding which type were used in what box.
The box code tells us nothing about that.

So throw a set of vernier in the hole & we can go from there.
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spetz
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Re: The Gearbox & Diff thread

Post by spetz »

Bennoz how is that Wavetrac treating you?
Can you fault it in any way, or wish some of it's behavior was different at all?
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Really good mate. Its everything I wanted in a daily driver LSD, its like it's not there when you don't want it to be (ie tight turns & parking etc), but you know its there when you do need it (ie going for a flog.)

If I have any complaints, and they are very minor, it does make a soft 'clang' noise sometimes when you are at stop & release the clutch a bit too quickly (as the outer cylindrical gears slap into place) and it does punish the gearbox oil pretty badly. I'm changing it every 6-8k. Hardly big issues.

I was down at Meek the other day & he's now a big fan of them. Using them in all their street Evos now apparently. Front & rear.
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Just an FYI guys, now is a good time to buy reco kits. Cobra transmissions have slashed their prices.

The F5M42 kit used to be $160 odd bucks, now its only $106: http://cobratransmission.com/index.php? ... d=50089001

Even the full kit with syncros & everything has gone from $500 bucks to $380.
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Re: The Gearbox & Diff thread

Post by aza013 »

f**k I wish I had money right now, would have jumped on that.
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Re: The Gearbox & Diff thread

Post by silverGPX »

Bennoz wrote:Just an FYI guys, now is a good time to buy reco kits. Cobra transmissions have slashed their prices.

The F5M42 kit used to be $160 odd bucks, now its only $106: http://cobratransmission.com/index.php? ... d=50089001

Even the full kit with syncros & everything has gone from $500 bucks to $380.

I wonder how long it'll stay that low!
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Dunno, but I've just ordered 2 kits :lol:
silverGPX
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Re: The Gearbox & Diff thread

Post by silverGPX »

My synchros are fucked!
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

silverGPX wrote:My synchros are fucked!
Why? Been driving like a tosser?
silverGPX
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Re: The Gearbox & Diff thread

Post by silverGPX »

Previous owner.

Downshifting into 2nd and reverse both suck!
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Re: The Gearbox & Diff thread

Post by Technikhaus »

Oooooohhhh that's tempting....

But which one should I buy, is it worth paying for the more expensive kit?
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

Just found this listing if anyone's interested. It's an individual breakdown of the bearings for the F5M42 box.

Primary shaft - Engine side x1
NSK Roller Ball Bearing
NSK B25-157 (B25-157Aa)

Primary shaft - Outer side x1
NSK Sealed Roller Bearing
NSK TM206U1 (507)

Secondary Shaft - Engine side x1
Koyo Barrel Roller Bearing
Koyo 7059I (7059ISH)

Secondary Shaft - Outer Side x1
NSK Sealed Roller Bearing
NSK 30TM05 (30TM05NX7) (A2&10)

Diff Bearings - For standard & helical LSD x2
Koyo Hi Cap Tapered Roller Bearings
Koyo 57428-N (LM501349-N)

Diff Bearings - For viscous LSD only x2
NSK Hi Cap Tapered Roller Bearings
NSK HR 30207J
silverGPX
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Re: The Gearbox & Diff thread

Post by silverGPX »

Would it be cheaper this way?
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Bennoz
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Re: The Gearbox & Diff thread

Post by Bennoz »

No.

Because of this one bastard bearing:
Bennoz wrote:Secondary Shaft - Engine side x1
Koyo Barrel Roller Bearing
Koyo 7059I (7059ISH)
Made by Koyo directly for Mitsubishi. No bearing supplier in the country can supply it, only Mitsubishi.
And guess how much they want for it locally??? $100. The same price as the whole kit from the US.

Having said that, if you only need one of the other ones, the local prices aren't too bad. Most of them are around the $25 mark.
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