Metal shavings on diff. plug, will my rear end grenade? - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 05-05-2013, 11:44 AM Thread Starter
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Metal shavings on diff. plug, will my rear end grenade?

So I had a leaky pinion seal on my 97 f250 and I replaced it. I pulled the plug to check my diff lube level and I found a lot of metal flakes/shavings on the diff. plug. I have a c-9 rear end according to the door jamb sticker, I think this means I have a limited slip, 3.55. I also think its obvious I have some wear going on, but to what? Should I look forward to replacing the ring and pinion, bearings the limited slip? The rear feels tight still, not a lot of slop or backlash going on, what will I likely have to replace? Input, sarcastic commentary, advice, what ever you got, its wanted. thanks.

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. - Benjamin Franklin
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post #2 of 14 Old 05-05-2013, 11:57 AM
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I would take the diff cover off, drain it and strain it. See just how much metal is suspended in the fluid, and figure out what is grinding.

Gerry

'97 CCSB f-250 4x4 auto, 6pos chip w/ canned tunes, AFE intake, 4 in exhaust, 3in dp, 3.55 gears,
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post #3 of 14 Old 05-05-2013, 02:30 PM
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When was the last time the diff was serviced? Maybe the fluid has never been changed, if so some metal shavings would be normal but pulling the cover is to easy to not check.

97 F350 XLT CC LB 4x4 7.3psd 5spd White/Tan
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post #4 of 14 Old 05-05-2013, 03:12 PM Thread Starter
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I bought this truck 2yrs ago and never serviced the rear end. So who knows? Ill pull the cover.

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. - Benjamin Franklin
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post #5 of 14 Old 05-05-2013, 10:03 PM
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It's normal to see some smaller stuff. When they get bigger, so do the problems.

1995 F350 XLT|DRW|7.3L Powerstroke|1.0 turbo|3" Diamond Eye Downpipe|Straight Piped|EBPV delete|DIY 6637|RiffRaff turbo inlet boot|203* thermostat|IDM mod|CCV|Built E4OD|Derale Trans Pan|Trans Temp Gauge|Explorer RAP RKE. Traded for a chevy

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post #6 of 14 Old 05-05-2013, 10:09 PM
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Agree with Blazin.

WHen you pull the cover look at the ring and pinion for chipping. It could also be the limited slip wearing.

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post #7 of 14 Old 05-06-2013, 05:11 AM Thread Starter
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I was thinking that it could be the limited slip too. The lube was pretty dark but not burnt smelling. I have thin flakes and of course the lube looked like it had glitter in it. If I determine the limited slip is wearing, I may go to a Detroit locker. I know there is a kabillion write up and opinions on a locker, but any input on using one on a f-250 is welcome. Well Ill yank the cover when I get the chance, till then Ill be working on the flat bed.

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. - Benjamin Franklin
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post #8 of 14 Old 05-08-2013, 04:57 AM
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Shiny is bad. No way around it. Fix it now before it leaves you stranded.
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post #9 of 14 Old 05-08-2013, 01:03 PM Thread Starter
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Quote:
Originally Posted by helievacpilot View Post
Shiny is bad. No way around it. Fix it now before it leaves you stranded.
!00% Agree.

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. - Benjamin Franklin
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post #10 of 14 Old 05-08-2013, 01:06 PM Thread Starter
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Well we all like pics so Ill post one for kix. Heres what Im dealing with. Ill pull the diff cover, take a look and snap a pic or 2 of the damage/wear. Stay tuned....
[IMG][/IMG]

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. - Benjamin Franklin

Last edited by boynamedsue; 05-08-2013 at 01:09 PM.
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