Recent content by ShadowSS561

I’m going to change my rear differential fluid for standard maintenance. I have a 2002 Silverado 1500 4.8L 2wd with the “GT4 G80” RPO codes. I do plan on doing a 1k mile roadtrip towing a trailer in a couple months. Should I just get whatever standard 75w90 the manual says or should I look into...