So, I bought my truck a few months ago. Nice condition, well taken care of but was completely stock. I talked to previous owner and he said he had transmission built with heavy duty parts for towing and at the same time he went through and replace ring and pinion, seals, bearings in rear end at same time. I am and have done some upgrades but just want a good maintained reliable truck. Sorry I am going on and on but getting back to having rear end redone. When I changed the rear differential speed sensor today I pulled old one out and there were metal filings on the piece that sits inside the rear end. I thought maybe from before it was redone. So I put new one in and didnt put any oil on o-ring so I pulled it and put some oil on o-ring and noticed metal shavings on new sensor end. Do you think there is some wear already on new rear end or leftover from when they redid the rear end and obviously didnt clean it out very well? Not sure how that sensor is set in there to know if its from before or now? There is 10,000 miles on tranny rebuild and rear end. The only thing I have pulled is a boat and smaller trailers under 5,000 lbs.

You should be able to enlarge the pics. I made them smaller cuz I didnt know if anyone would care if I used abunch of space, sorry!

Might be worth just reposting them... Just leave them orginal size...

Here is another try at the pics of when I took cover off my rear end. I didn't see anything wrong or any filings. Thanks everyone!

From what I see it looks ok... Magnets don't have chunks on them...:rolleyes:How about the rest of ya...

From what I see it looks ok... Magnets don't have chunks on them... How about the rest of ya...

Next time I post pics I will use a camera and take alittle more time. It was just a bit awkward and with my iphone that didn't want to cooperate. haha. Anyways, didn't see any marks or chunks out of teeth and at the bottum of hte differential there was only oil, no filings or chunks. Wiped it out good, cleaned it up and sealed it back on there. Hoping I don't have any problems with it. BTW, it was nice to chat with you guys last night. We will have to do it again soon sometime! Thanks!

Take a prybar and pry the carrier housing side to side to check how much play or preload is on the bearings if it is tight I wouldn't worry if there is movement I would pull the carrier and inspect things. Danas are noted for spinning the carrier bearings inside the case if preload gets loose. This will cause fine silt like iron as well as if you spin one wheel a lot since it is an open carrier the side thrust washers on the spider gears will wear a bit and cause fine iron silt too.

did you take a close look at the speed sensor ring?if it's possible the ring is making contact in the housing causing the shavings you found on the speed sensor.why did you replace it to begin with?

Could be the guy that rebuilt it did not drain the oil after a short break-in period and refill with fresh oil again :shrug:Should be obvious wear patterns on the teeth if there is too much backlash.If it's not making noise, I don't think I would worry too much.

Could be the guy that rebuilt it did not drain the oil after a short break-in period and refill with fresh oil again Should be obvious wear patterns on the teeth if there is too much backlash. If it's not making noise, I don't think I would worry too much.

This :iagree: I have never had to mess with the rear end, just changed the fluid at 50,000 miles, and the metal shavings, (the silt) has not returned, so im saying he should flush the fluid out as best as possible then refill, and maybe drain and refill again down the road, in a few thousand just to make sure.

did you take a close look at the speed sensor ring?if it's possible the ring is making contact in the housing causing the shavings you found on the speed sensor.why did you replace it to begin with?

I replaced it because it fell apart and it set off ABS light, brake light and speedometer stopped working.

--- Update to the previous post...

Thanks guys! I did drain and replace oil. No shavings in there. Must have just caught the speed sensor when the rear end was first replaced. I think its good. Probably change oil again next oil change to do a final check to make sure.