Gear oil & transfer case oil

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Gear oil & transfer case oil - 5/16/2008 6:19:05 AM    katenjoe Posts: 1 Joined: 5/16/2008 Status: offline Can anyone tell me what kind of gear oil and transfer case oil i need for a 1998 Dodge Ram 1500 4x4. Is it the same or two different kinds. Post #: 1

RE: Gear oil & transfer case oil - 5/16/2008 1:00:55 PM    94Beater   Posts: 26 Joined: 8/24/2007 Status: offline Front differential - 75W140 Rear Differential - 75W90 Transfer case - ATF (Automatic Transmission Fluid) - I use Royal Purple ATF _____________________________ 1994 Ram, 230K Miles 5.2l, 46RH Tranny, 4x4, 5 inch Rancho lift 35x12.5x15 Mud tires (in reply to katenjoe) Post #: 2

RE: Gear oil & transfer case oil - 5/19/2008 10:12:44 PM    jason.w Posts: 831 Joined: 1/17/2008 From: South Dakota Status: online Don't use anything but ATF+4. If you use regular ATF, which is not designed for Chrysler transmissions, you are asking for problems later down the road. My manual says to use 80w90 in the rear differential, not 75w90. However, that would be close enough that I don't believe it would matter any. _____________________________ -Jason Westerberg http://www.cardomain.com/ride/2902720 (in reply to 94Beater) Post #: 3

RE: Gear oil & transfer case oil - 5/20/2008 8:33:45 AM    94Beater   Posts: 26 Joined: 8/24/2007 Status: offline Royal Purple is synthetic and it comes in a single rating - universal. Plus his question was regarding X-fer case not transmission. It is OK to use ATF+3 in a X-fer case. _____________________________ 1994 Ram, 230K Miles 5.2l, 46RH Tranny, 4x4, 5 inch Rancho lift 35x12.5x15 Mud tires (in reply to jason.w) Post #: 4

RE: Gear oil & transfer case oil - 5/20/2008 12:40:16 PM    jason.w Posts: 831 Joined: 1/17/2008 From: South Dakota Status: online True, the transfer case isn't as picky (supposedly).  But a lot of those ATF brands come in one "universal" ATF.  Universal, or whatever, ATF is not the same as ATF+4.  You are still asking for problems later down the road if you use "universal" ATF in the transmission.  And I'm not saying Royal Purple is bad, BTW, just that regular ATF is not what our trannies need.  The same tranny fluid that works in a Ford or GMC transmission will not work as well in our picky stock Chrysler trannies. But, again, I don't think it'd hurt the transfer case.  < Message edited by jason.w -- 5/20/2008 12:48:45 PM > _____________________________ -Jason Westerberg http://www.cardomain.com/ride/2902720 (in reply to 94Beater) Post #: 5

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