How hard is it to convert the 4 lug to 5 lug itr. Do I need to get new axles, I am getting the hub assy, brake/rotors, upper control arm.

 

ah disk disk ok just buy a 5 lug set up fronts are easy to conver but rears are costly
fronts you will need new hub bearing, spindle, calipers, rotos, pads. You can use your stock knuckle axles are the same.

Rear trailing arms are the same but spindle is diff. and with brakes

 

If you get one off a jdm itr then you will need new axles since they are 36mm. But if you get them off a ctr or a usdm itr you can use your existing axles because they are also 32mm. You can swap hubs on the rear. The trailing arms are similar, the itr ones are just a litter bit thicker. But it's always best not too do things "half assed" and just get the knuckles as well as the trailing arms. It'll be a much more easier process bolting them on.

 

Trailing arms 92+civic and 94+ integra traing arms are all the same only difference in the ITR ones is the trailing arm bushing with I hope you repalce with an upgraded one other then that you can just strait swap the hole spindle hub and all over to a non-itr trailing arm but the ITR sprindle and hub on the rear is different and very costly