I have a 07 5.3 Z71 4x4, It has 50k on it now, I was wondering what suggested maintainance I should do on it. I am about to deploy for a year, the truck will not sit while I am gone though. I have changed tranny filter and fluid at around 40k, along with transfer case and front dif fluid. Any suggestions??? I am figuring at least spark plugs...
Thanks for the help in advance.

 

I think you're done. I believe spark plugs and coolant are good for 100k now. Good luck on your deployment. Stay safe.