2002 XLT supercab 4x4 with 8.8 rear.
I changed the pinion seal and fluid in the rear a couple months back and used mobil 1 LS gear oil for the oil change. When starting from a dead stop I get a little "chatter" noise that I think is coming from the rear end so I am wondering if it may be that I need to add the friction modifier (I didn't add any because the mobil1 was LS) or if it may be something else.
I will be replacing bearings, seals, and brakes this next weekend since I have a leaky seal so trying to get a diagnosis before the weekend to maybe eliminate the noise. Thanks in advance.