GTT34UAE

hey Here it goes i have a R34 GT HR Chassis was non turbo auto engine but converted the car to rb25 manual now. as years pass by now time to change bushing on the car anyone here can suggest some bush kits for HR34?? and secondly is ER34 and HR34 have same bushing and upper and lower front arms? or are they different? because i am planing to change my front upper and lower arms and bit confused if GT one are Different for GTT ones! Please Help!. Thanks and Regards Mohammed