I'm also having 4DR5; Though it has above said engine capacity following facts reccomended to be considerd;
a. Engine & its' transmission has designed to provide maximum torque as its needed.
b. Cooling System has designed in conventional basic way & think about the cooling effiecency of the cooling system of the vehicle.
c. AC compressor will be driven by the engine it will give extra burdon on engine than normal condition.
d. So becos of that power of the engine reduced when AC compresor intact(This can be easyly overcome by fixing push button type switch closer to steering so thah when you need more power you can easily switched off it)
Dear Nishantha; Don't be discourage by these talks;bcos I have also think several times & made my jeep Duel AC. Remember to insulate the canopy well; otherwise your effort will go on vane. To me it cost arround 70k & did it from Negombo.
Best of luck with your 4DR5
