I've seen a few ads of ke70 on pak wheels people have installed LSDs of Cressida & Crowns
The thing is the local mechanics don't know much about gear ratios and me neither 
What about brake upgrade ? I'm currently driving on Allah Tawakul Braking system , rear brakes are not connected, front are only useful for holding the car at a place , I've not touched the brakes yet , don't know the condition of pads and discs
Are original ke70 brakes good enough ? Or should I upgrade