I was wheelin' all wknd and to say that I went thru a few deep water crossing would be an understatement. I'm sure the breather tubes were submerged a few times. This brings me to my question...What type of fluid/oil are you guys/gals using in your diffs? I'm planning on changing the fluids and greasing all my nips once I've cleaned her up a bit, as she's a little muddy. Thanks in advance

 

Good write up with oil recommendation here;

http://project-jk.com/jeep-jk-write-...hange-write-up

 

How deep were you going?

I thought the stock tubes came up to about the same level as the intake. You'd have to be almost 3 feet deep to come close to the tubes.

 

I personaly use Royal Purple its a bit pricy but i feel you pay for quality

 

I used Mobil 1 in the rear & Valvoline Durablend in the front. I was going to use Royal Purple but the parts store didn't have the weight that I needed. In fact the durablend was the only 80w90 they had in stock. Seems to be an odd weight but that's what my owners manual calls for in the front.

 

I put Mobil 1 in the front and back (just did it a couple of weeks ago)

easy to do - a bottle pump would have helped out on the front

 

I wouldn't say all the water/mud holes were 3 ft deep, however, some were definitely. Friday night we pulled a stock Rubi out of 3+ ft, driver of that Rubi blow his clutch out, and was stranded for 2 days prior to our arrival.

 

Mobil 1 75W-90 Synthetic Gear Lube, replaced the original @ 5000 miles

 

x2 on the Mobil 1 and replaced mine at 10,000.

 

Amsoil synthetic for diffs , transfer case and tranny!