vanuatoo Posted July 21, 2013 Share Posted July 21, 2013 Hello, I'm going to change fluids in Front/Read diffs and Transfer Case. Truck is 10 years old, has 77000 miles (I bought when it was 5, 44500 miles) on it and I beleive those fluids has never been changed. I'm going to use http://www.mobiloil.com/USA-English/MotorOil/Other_Products/Mobilube_HD_Plus_80W-90.aspx in diffs and Matic D in transfer case. When looking in factory manuals, I've noticed that you have to apply Thread Sealant to plugs for front diff and transfer case. I've not bought OE sealant but got http://www.amazon.com/Permatex-56521-Performance-Thread-Sealant/dp/B000HBM72Q as an alternative (indicated in manual) But When I've looked at rear diff illustration there is no indication to use thread sealant for plugs. http://www.nicoclub.com/FSM/Pathfinder/2003_Pathfinder/ax.pdf Page ax-20 Could you confirm that sealant is not needed for rear diff plugs and you just take them out and put back on? Link to comment Share on other sites More sharing options...
theexbrit Posted July 21, 2013 Share Posted July 21, 2013 I just changed my rear diff oil, I used Castrol Limited Slip Synthetic 75w-90w & didn't use any plug sealant. No leaks, seems to run great. Link to comment Share on other sites More sharing options...
XPLORx4 Posted July 22, 2013 Share Posted July 22, 2013 If you are uncertain, you can use some teflon tape (the white tape you use on plumbing joints). Link to comment Share on other sites More sharing options...
Towncivilian Posted July 22, 2013 Share Posted July 22, 2013 No sealant is required. Teflon tape is suitable. Link to comment Share on other sites More sharing options...
vanuatoo Posted July 22, 2013 Author Share Posted July 22, 2013 Thanks for the replies. Now I'm confident that no sealant is required, even Teflon tape 1 Link to comment Share on other sites More sharing options...
deltaR50 Posted July 23, 2013 Share Posted July 23, 2013 when i bought my 01 LE 4x4. it had a visible leak from the rear diff. all i did was check the fluid then re tighten the plug. cleaned it then never had leak ever since. Link to comment Share on other sites More sharing options...
shoesandsocks Posted July 25, 2013 Share Posted July 25, 2013 i just did the diff on my 96 a month ago and it had sealeant on the plug it was just black rtv i just pulled it all off and reinstalled it without sealant and it worked fine 1 Link to comment Share on other sites More sharing options...
barnum Posted December 13, 2013 Share Posted December 13, 2013 how about manny tranny plugs? Link to comment Share on other sites More sharing options...
fixinto Posted December 31, 2013 Share Posted December 31, 2013 I did my diff oil a few months back and there was no sealant on the plug. "either plug" sealed fine and dont leak. Link to comment Share on other sites More sharing options...
dududuckling Posted January 1, 2014 Share Posted January 1, 2014 Replaced the diff fluids, transfer case and manual transmission fluids two years ago. Didn't put any sealant at all. No leaks till now. everything is nice and dry.Note: Make sure you loosen the fill plug before the drain plug Link to comment Share on other sites More sharing options...
Precise1 Posted January 4, 2014 Share Posted January 4, 2014 ^that can not be stressed enough! Thanks for the replies. Now I'm confident that no sealant is required, even Teflon tape The teflon tape is just insurance, allows it to seal without being as tight and will ensure it will not be as difficult to remove next time. I always use it. how about manny tranny plugs? Exactly the same... B Link to comment Share on other sites More sharing options...
Alkorahil Posted January 7, 2014 Share Posted January 7, 2014 As stated it is not necessary, if you really want it though here is the Nissan part information for the sealant, your local dealer should stock it. PART NUMBER: 999MP-1217FPP DESCRIPTION: THREEBOND Nissan MSRP: $14.98 Link to comment Share on other sites More sharing options...
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