Here are 2 pics of the front driver side
You have OME ( Old Man Emu ) shocks and I assume springs as well on it but of course not sure which ones could be weaker 925s or 926s even
NO 265-75-16s would not even come close to fitting since you need 4 inches of lift
Not sure where you are but get ahold of www. murchisonproducts.com.au they are in Brendale 07 32055011 Stu is the owner and a great guy , He has owned KJs and knows how to lift them/ what you will need .
www.jeepinbyal is of course here in the US and ships over there
but Stu will do you right , tell him you talked to me on the forums, he'll know
But OME 927 front and 948 rear springs are what you need , plus shocks that will put you at 2.5 inches over new stock