I believe my power steering pump is nearing the end of its life. The past few days I noticed when I crank the LC up the pump immediately starts growling from under the hood. Its noticeably loud at first, gets slightly quieter as it warms up but never fully goes silent. The reservoir is full, but fluid does look old and in need of flushing. I don't believe a simple flush is going to silence the pump. The truck is creeping up on 220k so I can't complain if its time for a new pump. That being said..... Who's everyones favorite supplier for pumps? Local auto parts store, Amazon, OEM?? Does anyone make a rebuild kit? Has anyone rebuilt their pump? It is even worth rebuilding with time and kit cost vs a replacement pump? What do you recommend for new fluid? I did some reading on here and it seems these trucks don't call for power steering fluid but rather AFT in the steering system? Is this correct? Thanks!