Ring & pinion ratio.

[jondee86]

The ability to drift your car is primarily governed by the amount
of power you have, and the amount of grip. Having a Limited Slip
Differential is a big help The only benefit from using a 4.7 instead
of a 4.3 is that you "close up" the gap between gears, and effectively
make each gear a little lower.

First gear with a 4.3 is already very low. Making it even lower will
more or less make it useless, as you will easily be able to start off
in second gear. And, while I am not a drifter, I would guess that
unless you are doing donuts around cones, you are not going to use
first gear much at all.

So, I say use the 4.3 and get yourself a set of wheels with some
skinny tires, pump them up to 45psi and go drifting Then put your
good wheels and tires on for driving to work.

Cheers... jondee86