5th gear any longer than 0.71 available for 020 4T gearbox?

[zaprzal]

I have 3.67 FD, is it possible to find any 5th gear that is longer than FF 0.71 and fit plug&play to 020 gearbox?

[subsonic]

I seem to remember reading that you could use one of the tdi 5th gears, something like .68 or .65.  The gear needed to have some minor mods done to one side of it.  Can't remember where I saw it.  Brokevw.com might have some info on it.