loud metal to metal grinding noise
cannot pin point exactly where it is coming from but front driver side is general area, only happens in reverse gear, sounds like something is tightening and about to break. I noticed that it only happens in gear, i can roll backwards down a slope in neutral, and it doesnt happen, it is very loud, very embarrassing and i cant figure out what it is. i've tried every possible scenario with engaging the 4x4 as well.
2003 F150 v8 triton 4x4 4.6L