What gear oil should i use in the rear differential on my 2007 silverado 2wd 1500?
My 2007 silverado 1500 has over 126,000 miles on it and I need to change the rear diff oil. I drive 100 miles a day round trip to work and back, mostly on the interstate. I rarely haul any heavy loads and I'm looking for the best highway performance I can get. And my biggest concern is making sure this truck runs good for as long as possible. I just need to know what oil I should use, what weight would be the best, and how much will the rear end hold?