I need a slighty longer final drive for my Sport/Street Ka box as right now i'm doing about 70mph @ 4000rpm which is not the best and also getting masses of wheelspin in the first 4 gears (all five in the wet!), I've either got a 4.25 or a 4.06 (cant remember which box I actually bought ) so I will either need a 4.06 or 3.82, just want to know where is the best/cheapest place to buy them?
I dont really want to go buying old box's and robbing them, as it's hassle and TBH I'd rather a new one as my box has only dont around 12k, although if they are silly money then that will be an option.

Thanks!

 

Thought about this for my fiesta ST, same sort of undertaking as it's an IB5 too you think?

 

Yeah if it's IB5 it will be the same mate, it's pretty easy to whip the box apart but I've never actually stripped a main shaft down and I'm assuming the FD is the bottom gear on the shaft?

In fact any tips from anyone on changing the FD would be appreciated, fitted a couple of LSD's but thats about it.

 

http://www.quantums.info/gearbox.htm

 

burnie from cts will be able to help with your needs mate

 

Your right of course, I just wondered about alternatives, like to shop around so to speak!