where to lock 4wd gearbox?

[toolman]

people, does anyone know a decent workshop that can lock 4wd gearbox, btw what do they actualy do when they 'lock' the gearbox to 2wd??

 

[differ]

just to share, when my 4g93t halfcut came, the gearbox was locked to rear-wheel only.

haha, FR-CD5A... me thinks must be drift kaki jepun.