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Author Topic: cleaning inside of rear differentail  (Read 7210 times)

Offline chronos

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cleaning inside of rear differentail
« on: December 30, 2009, 01:01:01 pm »
How can I go about cleaning inside of rear differentail
before putting cover back on?
Also what should I use to seal the cover back on , gasket or rtv?
Thanks
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Offline VileZambonie

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Re: cleaning inside of rear differentail
« Reply #1 on: December 30, 2009, 02:02:02 pm »
Wipe it out. You can use brake clean. Use the right stuff by permatex.
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Offline 1980c10

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Re: cleaning inside of rear differentail
« Reply #2 on: December 30, 2009, 08:35:19 pm »
No gasket and what vile said and watch for leaks for a few weeks or so.
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Offline chronos

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Re: cleaning inside of rear differentail
« Reply #3 on: December 30, 2009, 09:06:54 pm »
Thanks , I can get  "Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker"
here is all I can find (I'm in CANADA) I assume this will be OK?
Got the brake cleaner today
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Offline Mr Diesel

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Re: cleaning inside of rear differentail
« Reply #4 on: January 01, 2010, 12:14:42 pm »
Quote
Thanks , I can get  "Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker"

I use this for just about everything that had a gasket. Works great, cheaper, and lasts longer.
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Offline chronos

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Re: cleaning inside of rear differentail
« Reply #5 on: January 02, 2010, 03:37:38 pm »
Great,I will pick some of that up today.
I have a 1986 10 bolt open rear in this truck.
How much fluid does it hold? Can I put the fluid in through the vent tube?
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Offline VileZambonie

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Re: cleaning inside of rear differentail
« Reply #6 on: January 02, 2010, 03:45:57 pm »
No you fill it through the fill plug.
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Offline malibu795

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Re: cleaning inside of rear differentail
« Reply #7 on: January 03, 2010, 03:32:52 pm »
had a rep from perma tex come to school last week..


they ultra cooper is strong enough to make exhaust gaskets..... lay a bead.. let is dry/skin over then install...
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Offline SUX2BU99

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Re: cleaning inside of rear differentail
« Reply #8 on: January 06, 2010, 10:29:25 am »
And it's probably much easier to find a RTV product at various stores and times than it is to buy a gasket from a parts store.


That all said, on my truck, each time I've had a drip from the rear diff, it's been when sealant was used and not a gasket. The two times I've used gaskets and my chrome cover, no leaks. Even when a specialty differential shop was working on my truck, they used sealant and I had a leak. It allllll depends on how good you apply it and clean the surface it's sealing against.
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Offline Jim Rockford

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Re: cleaning inside of rear differentail
« Reply #9 on: January 08, 2010, 09:07:12 pm »
I always buy a gasket, then smear axle grease on one side of the gasket, that way next time i take it off it doesn't stick.
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Offline Layne

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Re: cleaning inside of rear differentail
« Reply #10 on: January 08, 2010, 09:08:30 pm »
I put a light coating of rtv on the gasket then put it on. That's me, though
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Offline VileZambonie

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Re: cleaning inside of rear differentail
« Reply #11 on: January 09, 2010, 02:30:48 pm »
Layne, you're defeating the purpose of the gasket when you do that so why use the gasket? RTV does not ad too the sealability to a gasket. If you like using a gasket, scrap the RTV and use a gasket adhesive sealant.
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Offline Layne

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Re: cleaning inside of rear differentail
« Reply #12 on: January 09, 2010, 06:58:43 pm »
So it's one or the other? I figured rtv + gasket = no leak.
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77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.

Offline VileZambonie

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Re: cleaning inside of rear differentail
« Reply #13 on: January 10, 2010, 11:44:45 am »
Good RTV = no leak and no need for gasket.
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Offline Layne

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Re: cleaning inside of rear differentail
« Reply #14 on: January 11, 2010, 11:41:03 am »
Ok thanks. I only use "the right stuff" that you guys recommend anyway, so being extra picky actually makes it worse.
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77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.
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