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would this work?

Posted: Sun Aug 12, 2007 7:48 pm
by 1der
m4 golf gt tdi gearbox

as above. spotted on a polo gti on piston heads.

Posted: Sun Aug 12, 2007 9:02 pm
by garnier
It would work on something, but not a polo gti...

Posted: Wed Aug 15, 2007 5:10 pm
by Dee-vub
garnier wrote:It would work on something, but not a polo gti...
And why not?

Posted: Thu Aug 16, 2007 2:01 pm
by garnier
err, becuase it's a different gearbox. Firstly the casing is different which would cause some fitment problems.

Secondly, if you did somehow get it to fit, the gear ratios are different. The Tdi has a lower gear ratio, making a lower top speed in each gear.

The TDi box is also bigger and heavier - the polo GTi engine bay is cramped enough.

Can't see why you'd want to tackle any of this

Posted: Thu Aug 16, 2007 5:36 pm
by Dee-vub
:D Cool, answered me anyways lol

Posted: Thu Aug 16, 2007 6:14 pm
by garnier
sorry, I sounded a bit snippy there. Guess I'm just stressed out with all my own gearbox problems!

I've done a lot of searching too on cheaper ways to get a replacement box, and the golf was one of the first things I looked at, but it won't fit. The other option someone suggested was to use the casing from a smaller engined Polo, and swap the internals.

Not a bad idea if you can get one, but chances are a scrappy will want 100-200 for a second hand gearbox, then you've got about £300 for rebuilding internals assuming they arent too wrecked.

So for the great majority of unlucky GTi owners, it's either a rebuild (if it's only internal problems) or a refurb unit if the casing is cracked (ace gearboxes) :cry:

There's usually a gearbox rebuilder in your town somewhere, he'll take about £350 for a rebuild. Ace gearboxes want £525 these days for a complete refurbished box, in exchange for your old one.

Posted: Thu Aug 16, 2007 9:45 pm
by garnier
Yeah, it would be good to know. I've heard the main weakness is due to a plastic bearing or something like that.

Places like Ace Gearboxes have a vested interest in getting business from this sort of stuff so somewhere like that won't help you. I'd bet there will be a local guy that does boxes who'd be able to help you out on strengthing this up. There's a guy in Edinburgh (TAV Transmissions) who is pretty good and helpful - I didn't pursue the matter further cos it's game over for me and the Polo. I've got a new job and the commute is a 60 mile round trip, so I'm now drinking from the black pump.

Posted: Fri Aug 17, 2007 6:40 pm
by Biddle
I thought that the reason that the gearboxes are prone too failing was due to VW using to small bearings in their boxes?