on alotta turbos you have to balance them. on the one you pulled you dont. get a rebuild kit and have at it. just be gentle with it. when your removing the turbine (exhaust) housing it will be really easy to damage the turbo. (it can be a BITCH to get off) you just hafta be gentle and take your time with it. also keep in mind that the flange on the turbo you pulled is not standard t3, the bolt holes are offset. make sure the manifold you buy / have has room for new holes.