'97 4x4 RAM 1500 - Transfer Case & Diff Fluids - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 8 (permalink) Old 06-22-2004, 09:25 PM Thread Starter
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'97 4x4 RAM 1500 - Transfer Case & Diff Fluids

Well, My RAM is edging near 80,000 miles and to this day, I have never changed the transfer case or diff fluids. I know that the rear is a limited slip, but didn't know what was the best fluids to be dropping in there.
For the Diffs, I assume that it's 80w90 with a friction enhancer for the limited slip in the rear and just regular 80w90 for the front, but want your guys opinions on what fluids to buy. I intend on going all synthetic with the diffs.

The transfer case gets ATF and I think I have a gallon jug of ATF+3 Type 7176 around here somewhere... Would there be any benefit to going to say Amsoil ATF pure synthetic? Let me know what you think and please let me hear your experiences!

Also, do I need new diff cover gaskets or do you guys recommend some good RTV sealer? I have been thinking about getting one of those hand pump vac setups for awhile, would I be able to use something like that and not pull the covers off?

TIA!

Kyle

1994 Intrepid ES - 3.5L w/ 167k miles - SOLD 04/01/04 for $2200 - Man do I miss it!
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post #2 of 8 (permalink) Old 06-23-2004, 08:14 AM
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Pull the diff cover and wash everything out with brake cleaner. It might let you see something you may have missed if you had of just used the vacuum pump.
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post #3 of 8 (permalink) Old 06-23-2004, 09:00 AM Thread Starter
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I was thinking about doing that, but I am not having any troubles at all so I was just wondering if that would be an unnecessary step. It's easy enough to do. What do you recommend for the diff covers (RTV or gasket)? Also, do you have any opinions on what kind of fluid I should use?
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post #4 of 8 (permalink) Old 06-24-2004, 06:16 AM
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RTV all the way.

You don't really have to pull the cover...Its just something I like to do. Not that I like the smell of gear oil much, I just like to have a peek inside.
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post #5 of 8 (permalink) Old 06-24-2004, 09:11 AM
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with 80K miles, you should pull the cover and give it an inspection, after you clean it out and apply the rtv, let it "skim" up before put the cover back on.

bt skim i mean let it sit on the cover for a few 10-15 minutes before you reinstall the cover.
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post #6 of 8 (permalink) Old 06-26-2004, 03:06 PM Thread Starter
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Changed the front and rear diff fluids this afternoon. Went smooth as silk. Used some Permatex Ultra Black for both covers and cleaned everything up real well with brake cleaner.

Whole process took me 1.5 hours, but most of that time was me either waiting for the sealer to setup some (15 minutes per diff) or to make sure that all of the brake cleaner had evaporated (~10 minutes per diff). The rest of the time was cleaning stuff up.

Also did the seafoam thing this morning. WOW! What a difference! And what a smoke show. I was waiting for the laser light show to start at Six Flags Darien Lake (about 1 mile away!).

**EDIT - Oh yeah. Almost forgot. I used Mobil 1 75w90 (GL-5 compliant) gear lube for both front and rear diffs. It was just as cheap as the other brands (non-synthetic) at $6/qt and 4.25 qts were needed.

Kyle

1994 Intrepid ES - 3.5L w/ 167k miles - SOLD 04/01/04 for $2200 - Man do I miss it!

Last edited by swartlkk; 06-26-2004 at 03:09 PM.
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post #7 of 8 (permalink) Old 06-27-2004, 03:32 PM
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Did you enjoy the smell? lol

Glad to hear it went nice and smooth.
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post #8 of 8 (permalink) Old 06-27-2004, 04:13 PM Thread Starter
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Actually... I didn't notice any smell. There was a decent (not strong) breeze when I was working on it, but my head was right next to the pan when it was draining. Just didn't notice any offensive odor...
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