MK6 manual gearbox > MK5?

[pudding]

My ED30’s manual box is making a nasty rattling noise when hot. I think it’s on it’s on it’s way out. Rather than replace like for like, does anyone know if MK6 gearboxes fit a MK5 engine?

I believe the 6 box got steel shift forks as standard, plus a few other improvements, hence considering it as an upgrade.

Ta!

[pudding]

Answering my own question, yes they fit 

Looks like the KZS code from the 147KW Scirocco / MK6 2.0 TSI / A3 / Leon / EOS is a good suspect and plentiful on Ebay.

Just trying to figure out the gear ratios as the final drives are taller than those in my ED30 gearbox, JQN code.

If anyone knows of any gear ratio charts......I'm all ears 

My gearbox has 2-3mm shaft play which is causing massive gear lash and bearing noise.  This is what happens when you subject the box to years of stiff clutches and remaps    It sounds like there's a road drill inside the casing, and also a bell ringing brigade.

[titchy]

Try www,reddit.com

[pudding]

Thanks mate.

I gave AKS Tuning a call and they said any petrol turbo gearbox will fit and feel the same to drive.  Just avoid diesel gearboxes as they're too tall!

[LC5F]

Surely add LSD at the same time?

I've got the KZS ratios, but cant see JQN - is that an 02S type box?

Type - 02Q
Code - KZS      
6 speed      
Scirocco 2010            
Final drive ratio: 3.944   
1st - 3.357   
2nd - 2.087   
3rd - 1.469   
4th - 1.098   
5th - 1.108   
6th - 0.927

[pudding]

Would love to fit a Wavetrac mate but can't afford it    I think they're about £1200ish now 

Thanks mate. 

JQN is an O2Q box mate, one of 3 or 4 different flavours fitted to the ED30 and Pirelli.  I can only find the final drive ratios for the JQN, but not the gear stack.

K03 cars got a different box code for some reason but the ratios are the same. I think the difference is minor internal changes such as the end float shim and different final drive ratios, but the overall gearing is the same.

[FJB]

Later boxes KDU & KPA are the same ratios as the JQN and will be a direct replacement.

[LC5F]

Same type as the planned new one - I can give you JLT & LMA, but JQN is missing from my list.

Yes - that is the problem with LSD, they are in the "capital investment" price range.  I remember when Wavetrack first appeared, very attractive prices - unsure if its devalued £ but those prices have really jumped.

Can I suggest getting in contact with Mart at Gas'n Gears on face book, one man in a shed who does gearboxes - AKA Hotgolf - He sourced and fitted a Quaif for my other VW - He may be able to help with the price for a diff, and if you ask nicely may have the ratio's for JQN

[pudding]

Thanks guys!

Yeah I remember HotGolf from my ClubGTI days!

I took a gamble on a low mileage KZS box from ebay, so will stick that in and see what it’s like. If the ratios are shorter, I’ll be happy with that. If they’re taller, I’ll live with it so long as the acceleration isn’t too blunted. 

As a cheaper alternative to a wavetrac, I might look into the MK6 GTI abs pump swap as it has XDS TC, which works up to 60mph, compared to the MK5’s 30ish mph. This in theory should give the TC more time to slow the spinning wheel. Remapped MK5s just spin and spin as the control window is too small. That’s the theory anyway 

[LC5F]

Yeah I remember HotGolf from my ClubGTI days!

Yes - that's where I found him too, I've still got an ABF lightened flywheel he did for me - such a shame that place ended up completely toxic.
Hope the new box works out, ABS upgrade would be messy, but worth it.
I understand with mine being DSG it can be re-mapped to reduce slip.

[pudding]

Oh really? Seems to be the way with a lot car forums and Facebook groups these days. I haven't used it for years as it's mostly MK2s and track day stuff.  This site is pleasantly free of bitchiness 
It was bloody years ago but pretty sure HotGolf supplied me with a 3.68 final drive for my old Corrado VR6. That really woke the car up.  Should have been factory fit!

Cheers.  On first inspection, the input shaft's lateral play is virtually zero compared to mine, which is encouraging.  I can see externally where VW have changed a few things.  It's a 2011 box.  It's mainly under the black end shaft cover that's had some re-engineering under there.....hopefully for the better!

Hoping it's not too messy as the pump and ECU are integrated into one unit, but if the plumbing and harness are completely different, you're right, that is too messy and not worth the hassle.

[bobby_fodge]

Hotgolf lightened a flywheel for my mk2, made it rev so quick. Nice bloke as well.

[pudding]

I can confirm the MK6/Scirocco ‘KZS’ box works well in a GTI 

Even better with Redline MTL gear oil 

[probedb]

Nothing to add other than to say cheers for the info re gearboxes. Pretty sure mine is getting ready to be replaced but purely through 175k of use :D

[pudding]

No worries.  In the end the rattling was nothing to do with the gearbox 

After some stethoscoping, the likely suspect is the oil pump chain/tensioner.....and that isn't a pleasant job.

Anyway, the later gearboxes are a huge improvement so it wasn't a total loss    The lower 3 gears must be a bit shorter as the car has never felt so responsive off boost, I love it!  Same 80ish @ 3000rpm in 6th though, so no change in the upper gears