brianconwy said:
I want to change the oil in the front and rear diffs. Rave says to use Loctite 290 on the drain plug threads when replacing. I actually have Loctite 270 in the garage. Do you think the 270 would do the job or should I wait till I have 290?
http://www.loctite.co.uk/loctite-4087.htm?nodeid=8802623848449

http://www.loctite.co.uk/loctite-4087.htm?nodeid=8802623619073

Thanks.
Click to expand...
never bothered - very few weep, as they are a tapered thread..... and if they do, it shows there is some oil in there. ....providing it is not excessive.
 
I am assuming it is more to stop it coming undone than anything, so the plug doesn't work its way out and lose all the oil.
 
Unlike the fill/level plug which is flanged and can be done up tight, the drain plug is tapered so that when it's fully in place nothing, or very little protrudes from the axle case which could be at risk of being struck and dislodged when driving off-road.
 
I think you will find loctite 290 is a bit like the old red hermetite

I remove and refit hundreds of taprred level and drain bungs at work each year, none ever get any sealant when refitting.
 
brianconwy said:
In the event I loosened the filler plug and oil dribbled out. It was clear so I left it as it was.
Click to expand...
It would do it unless there’s issues with the diff, but just look at the colour of the oil after it’s been drained it will be a lot different to the fresh stuff.
 
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