hey guys I have a 1998 ram 1500 (2wd, automatic, 5.9 l) I recently noticed a noice from my rear end during deceleration. It basically sounds like a skateboard wheel spinning lol. I’ve done some research and it sounds like I’m gonna be rebuilding the differential as the most likely culprit is pinion bearings. My question is; is there an effective additive I could use to quiet this sound and delay the rebuild? I plan to do a fluid change and new gasket on the cover since it appears to be leaking. Also, if this is not an option, would it possibly be better to simply replace the rear end with one from a junk yard? I’ve never done any rear end work besides simple fluid changes and stuff and I’ll admit I am intimidated by the chore.