2004 silverado Z71 5.3L iron block [215,650 miles] I run royal purple and go 3,500 miles between changes, my engine burns about 1 quart between changes. Dosent leak oil and no misfires. I do get lifter tick on startup
This bracket that holds a 4 plug plate for the rear taillight wiring. it is mounted on the rear of the frame at the last cross member. I cant find it in my drunken stumbles, a part # or where I can buy one would be a huge help