GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Llewellyn on 26 February 2009, 20:53
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hi guys,
just wondered whats involved in changing the diff on a mk2 gti 8v, cos i seem to have to front wheels locked together.
:S
James
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Browsing the classifieds for another 'box?
You could go to a G3 8V box - it's a bit stronger, with the larger input shaft.
The problem with your current 'box is that it's probably got quite a bit of swarf in there now - everything will need to be very well cleaned prior to re-assembly.
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worth checking its not a tasty diff first tho surely ?
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Lol, be hilarious if theres a Quaife LSD in there.
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it would be a very knackered LSD if anything LOL
easier to change the whole box then???
am i right in thinking 16v has a longer 5th?
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No. The 8v has a longer 5th.
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Bloody Hell, a 16v must be horrible an a motorway,
both my 8vs have been 72 mph at 4k rpm, if the 16v is any shorter than that its taking the piss!
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At 4k - mines doing near enough 85 on the speedo - about 81 on the sat nav.
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Weird, i'm pretty sure that both my cars had originals gearboxes. that 72 on the sat nav.
Strange
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Swapping the diff itself isnt an easy job, and even if it was chances are its done some very bad things to the gearbox casing and the rest of the internals
the MK3 8v box is not any stronger, yes it has a bigger input shaft but thats the last thing that would fail on an 020 box. 16v box also has the bigger input shaft and is closer to the MK2 8v box in terms of ratios, but shorter 5th as said. not a massive ammount in it though.
mk3 ratios are a bit more relaxed though, its up to you really.
http://www.scirocco.org/gears
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As helpfully as always with your response rubjonny
my hero :P
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So if the numbers are bigger what does that mean?? For example...what are the difference's between these gearboxes??
Tranny Code FinalDrive 1st 2nd 3rd 4th 5th
AGB, 2Y (16v Close Ratio) 3.67 3.45 2.12 1.44 1.13 0.91
AUG (1.8 8v 90's G/J) 3.67 3.45 1.94 1.44 1.13 0.89
say mine's the bottom one
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i've managed to snap the mainshaft off in the clutch before :evil:
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You can always fit the 16v gearbox and change the 5th gear for that out of a 4e gearbox or a toledo diesel. That would drop your RPM down to about 3200 at 80mph, from 4000rpm. I did this on my old 8v. It was great. Saved fuel too, on a run.
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higher numbers mean shorter gears, go back to the site and try out the funky gear calculator :)
from that you can see the 8v AUG has a taller 2nd and 5th gear compred to the 16v 2Y.
danny thats impressive work! 1st time I've heard of that happening, did anything else go pop as well?
DarnPB: not as simple as that I'm afraid, 2y and MK3 2.0 GTI 8v boxes have a different 5th gear setup, which means you cant fit 'normal' 8v gears onto it. 2Y and MK3 GTI 5th will fit a normal 8v box though. Best you can do on a 2Y box is fit the MK3 GTI 5th to it :)
edit: taller meaning lower rpm at given road speed, so you can get a higher speed in 2nd and 5th using an AUG box than a 2y box :)
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higher numbers mean shorter gears, go back to the site and try out the funky gear calculator :)
from that you can see the 8v AUG has a taller 2nd and 5th gear compred to the 16v 2Y.
danny thats impressive work! 1st time I've heard of that happening, did anything else go pop as well?
DarnPB: not as simple as that I'm afraid, 2y and MK3 2.0 GTI 8v boxes have a different 5th gear setup, which means you cant fit 'normal' 8v gears onto it. 2Y and MK3 GTI 5th will fit a normal 8v box though. Best you can do on a 2Y box is fit the MK3 GTI 5th to it :)
I stand corrected. :smiley:
I dragged a 5th gear from a 4e gearbox and fitted it to my 8v. I didn't know there was too much difference between 8v and 6v gearboxes.
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Was your car at Brands on Wednesday mate?
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Was your car at Brands on Wednesday mate?
Who's? Mine? I hope not! I left it parked at the outlaws house with a cover over it a couple of weeks ago...here in Spain! :undecided:
I better go and check see if it's still there!
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not a missive difference, what it is the 2Y stylee gear has a groove cut into it, and uses a different circlip. It'll fit an 8v box no bother using the 8v curclip, but you cant do it the other way as the 16v circlip is a different thickness, and the 8v gear has no groove to properly secure the 16v circlip. its easier to just look at brokes site, much easirt to see what I meran from his piccies:
http://www.brokevw.com :)
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Was your car at Brands on Wednesday mate?
If you mean me, then yes it was :)
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Was your car at Brands on Wednesday mate?
If you mean me, then yes it was :)
Yeah I meant you! Not you DPB ;)
Saw your car and had a nose round looked very nice and reminded me of my old red 3dr Mk2! I also pointed it out to the other forum members I was with!