I have a 2011 Raptor with 130k miles on the stock power steering pump. I bought it with 112k miles and changed the fluid a few thousand miles after buying it as it was very burnt and I was getting steering shudder. Changed the fluid with oem fluid, then two days of street driving later the vibration comes right back. I beat the hell out of my truck off-road, and the vibration only got worse with 2 off-road trips. Not wanting to spend $1500 on a Howe pump and reservoir, I bought a $30 name brand power steering cooler from Amazon and spliced it into my stock reservoir tubing. I replaced a quart of fluid in the system and took the truck off-roading the next day. 37’s, 4wd engaged the entire time, and a consistent 60 mph through sand washes with aggressive steering lock and I didn’t have a sound from the power steering pump, and haven’t had one since. Before jumping to buy expensive parts just because “xyz” company that makes it says you need to, explore other options...I do plan on buying a better reservoir as well once it’s in the budget, but for now the cooler has fixed all of my problems.