Postby swift1 » Sun May 06, 2018 3:30 am
I’ve had the same issue with hum noise and high frequency vibration at 60mph and I’ve rotated tires, balanced, alignment, changed u joints, and it’s being narrowed down to either the front differential issues or front propellor shaft. I noticed that if I jack up the front end and lay in the floor and spin the front tires that I can hear a faint hum noise from front diff and tinny front splash / protector below front bumper.
My next plan of attack is is to remove front prop shaft, and drive it, this should narrow it down to either front diff gear wear or drive shafts, I’ll recheck all u joints by removing both drive shafts.
It seems like some of the Titans had front diff issues where a former Nissan mechanic told me they stocked front diffs like brake pads years ago. He mentioned that the front diffs are made at the same plant. I don’t know but I’ve looked at some issues online sbout this.
Did you ever resolved your issue?