Six speed conversion

[h100vw]

Sean what diff have you chosen to run? My box is the HWY (I think that's right) in an 06' - is that the same as yours? I'm trying to work out what the difference is between my box and the 02R that everyone else seems to talk about.

O2R is the series of gearbox Sam. HWY refers to the particular box for the Polo GTI. You'll find many 02R boxes on ebay for example. Some for TDIs etc.

GAvin

[Bora Sport]

Because the Polo wheel and tyre total diameter (which reflects in the revolutions per kilometre) is less than the wheel and tyre total diameter ie rolling radius of the Golf, the total overall gearing will be lower than that when that gearbox is in the Golf.

[seangti]

Sean what diff have you chosen to run? My box is the HWY (I think that's right) in an 06' - is that the same as yours? I'm trying to work out what the difference is between my box and the 02R that everyone else seems to talk about.

Yeah, so what Gav said, it's an 02R box. The issue is the size of the "ring diameter of crown wheel" (that's a quote, I actually don't know what that means) as there are 2 sizes and no way to tell till the box is open.

I got the box out over the long weekend. In the most part it was straight forward. I did need a hand only for the box removal once it was free from gearbox mount but separating from the engine. Unless your missus does weights, best not to seek her help. I'm planning to run a wavetrac diff and use a local race car building workshop to do that install. The workshop suggested going a plate clutch style differential instead, they are going to make some calls for me and price up an option. At this point I don't see any need for stronger gears.