Power Steering pump replacement

My pump power Steering is going out. 270,000 + miles on 2010 tundra. Lasted pretty good.. need help changing it.. getting too old to do this anymore..any help would be appreciated. Thanks

 

I live in Texas. Work across northern tier and southern tier of these United States of America..I really like my tundra rock warrior and have owned and worn out several Toyota tundra trucks. I have to replace my power Steering pump very soon. Is it worth going ecm on a truck with this many miles. Keeping truck for grandkids. This is only thing I have had go out . Hope it stays that way.
It's a 2010 model. 5.7 liter