Front and Rear Differential Fluid Change
Hello, New to forum but I have found these are the best ways to save money from the help of people on here. I bought my Denali 2 weeks ago and it has 51K. I was wondering what brand is best to use and how much will I need for each? Also is this a DIY (if anyone has steps or pics of process that would be a great help) or should just take to dealership or local shop? Thank you in advance to time and help.
John