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Can you waterproof your differentials?

12K views 51 replies 27 participants last post by  lys327 
#1 ·
I have stock diffs and I have been reading on theses threads that when water fording you need to worry about you air intake and your diffs. Is there a way to seal them to water can't get in? Same with the axile? Thanks in advance
 
#2 ·
Dude I am going to give you a nugget of wisdom but I am not going to post it on all 3 threads you have going at this time about the same thing.



Stay out of the water!!!!! You are going to ruin your Jeep and piss the nice people that bought you that Jeep off. Do yourself a favor and listen to me, you will kill your Jeep and regret it.
 
#24 ·
listen to him, i went through some deep water and ended up with out a clutch didn't know you couldn't open under water.. anyways water/mud breaks stuff. I'm going to miss it but i like not having expensive repairs. I did have the miss conception that jeeps were submarines tho:)
 
#5 ·
IWANNAOFFROAD said:
Sorry Ive posted 3 threads in a shot period of time. I tried to make them different questions. Im just hungry for knowledge. Now does that go for mudding too?
You can ask different questions in threads you start. Your the creator of the thread... especially since all 3 of your threads are the same thing.
 
#6 ·
You NEED the vents to allow air to go in and out as the axle and transmission cools and heats up. If you plan on going in water deeper than the bottom of your door or so, I would extend the breather tubes. Super cheap and easy. Always check your oil for foamy or creamy substance after you go in water or deep mud. If you HAVE to go in water on a trail thats deep, as long as it is below the air intake (say bottom of headlight) you can do it, as long as you go right home and change all fluids.
 
#8 ·
DevilDogDoc said:
Dude I am going to give you a nugget of wisdom but I am not going to post it on all 3 threads you have going at this time about the same thing.

Stay out of the water!!!!! You are going to ruin your Jeep and piss the nice people that bought you that Jeep off. Do yourself a favor and listen to me, you will kill your Jeep and regret it.
I seriously thought we were going to have to start a new thread that says "jeeps they are NOT submarines".... Hahaha
 
#9 ·
IWANNAOFFROAD said:
All the fluids would be the diffs the oil and the trany right? Do I have to take both diffs completely appart? Because that would be a pain in the ass. Thanks for the useful information by the way.
For the diffs you just need to pull the diff cover off, let it pour out, reapply either RTV or a lubelocker gasket (much easier), and refill with gear lube. Tranny/transfer case just remove the drain bolt, let it drain out, and use the fill hole to fill it back up.
 
#14 ·
A snorkel should not be installed to enable you to go into deep water or mud. It should be more of a precaution aiding when you accidently wade to deep. Yes, we should all check the depth beforehand but it does happen.

With that said I have gone through pretty deep water before and you don't have to change all the fluids, etc when you do go through water. Just be caution and informed about it and always check your fluids after going through deep water. It is not a submarine but can handle some pretty deep water if it needs to.
 
#19 ·
CIA= Christians In Action???
 
#21 ·
Even if you have gone through water in the past without harm, as the oil seals on the engine, transmission, transfer case, and axles age, the seals get less effective. At some point when you immerse a warm driveline component in cool water or mud, it will suck that water or mud in past the seals when it cools down abruptly. If you are in the habit of not checking the lube for contamination, you will need to rebuild or replace that driveline piece.

I have seen people actually supply some small amount of air pressure to vent lines to make this less likely (stock Rubicon locker pumps at 5psi are a great way to do this), but you STILL need to check all the fluids every time they get immersed.

It really is not a submarine, nor is it designed to be regularly immersed in liquid past the bottoms of the axle tubes. With two seperate inner and outer oil seals, the diffs are more resistent to fluids, but you still have to check them every time.

I check my diffs for water by just opening the fill plug and sticking a popsickle stick down into the lube. If it is whipped into chocolate fluff, I know water got in there.
 
#22 ·
DevilDogDoc said:
Dude I am going to give you a nugget of wisdom but I am not going to post it on all 3 threads you have going at this time about the same thing.

Stay out of the water!!!!! You are going to ruin your Jeep and piss the nice people that bought you that Jeep off. Do yourself a favor and listen to me, you will kill your Jeep and regret it.
Hahahahah very nicely said.
 
#27 ·
Kids, don't try this at home:

 
#29 ·
IWANNAOFFROAD said:
At what point does the transmission suck in water? I don't believe an automatic Tj wrangler has an breather hose on it.
Um hate to tell u this but the do and depending on what year u have depends on how it is this is what a pre 03 looks after I redid the vent line to raise it higher to keep water out
 
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