I have an occasional clicking noise in my rear diff that is not the normal Lock-rite ratcheting while turning, but is similar, and seems to be happening while driving in a straight line on a rough road. I've attempted to dip the diff with a magnet and found no metal, pulled the passenger rear wheel and checked the drum brake stuff and pulled the axle (old style D-35 non c-clip) to check the splines and to look for metal fragments. I haven't had time to pull the diff cover, and was looking for some opinions before I got into it. I may have to see if Aaron has any evenings available and make the trip to Wilmington.
rear diff noise
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I dont have any helpfull advice aside from Id pull the cover and inspect the gears. The only time ive ever had a clicking from the rear gear going in a straight line was a result of broken ring gear teeth or a broken cross shaft pin. Both of those you could actually feel rather than just hear so hopefully yours is unrelated.
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Sure your driveshaft u-joints are good?
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what makes you think its the diff and not part of the suspension or something else in the area?
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Sure your driveshaft u-joints are good?
This ^.... If one of your joints is dry or spit a needle bearing, they will make a ticking sound. -
I've had loud noises as well, usually when I just start moving. It's not the u-joints. I recently dropped the t-case for another issue and found that my rear driveshaft splines were seized. Haven't driven it yet since putting it back together but I'm thinking that was the cause of my noise.
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