98jeepawd

Please help it also leaks power steering fluid and has ran dry several times. So im thinking it could be the steering box? No noise when sitiing still although once i thought i heard it sitting still it has since started leaking a little trans fluid. Any thoughts on sealing that? Its an awd v8 i cant afford to keep all tires exactly the same size. I have 3 235/75/15s on it and one 245 75 15 i wonder since i have slighty bigger tires on it if somethings rubbing when i turn? I took it to shop they said both cv axles and a wheelbearing. So i put a cv axle and wheel bearing on driver side it didnt make a difference the ones i took off looked fine. So i went to a junkyard and got them same exact noise. Im pretty sure the shop was crooked. It sttred as kinda a squealling noise and would change sound from side to side. No its a knocking and sounds the same on both sides. Please help