SOLID dif covers and dif fluid?
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
http://project-jk.com/jeep-jk-write-...hange-write-up
Step 6 in that write-up...
Step 6 in that write-up...
6. Fill up your Jeep JK Wrangler’s differential with SAE 75W-90 synthetic gear oil. The Front differential only needs 2.7 pints (1.35 quarts) and the rear only needs 4.75 pints (2.375 quarts). If you have factory covers, all you need to do is fill up your differentials until gear oil oozes out of the fill hole. If you have an after market differential cover that has a higher fill hole (like a SOLID or ARB), DO NOT be tempted to fill up your differential with any more gear oil than it needs as it will just end up getting pumped out of the breather tube and make a big stinking mess.
JK Enthusiast
Joined: Oct 2007
Posts: 169
Likes: 0
From: Wildomar, So Cal
Usually the front takes 2 bottles. The back takes about 2 1/2. 
Bullfrog devised a great way to check the fluid before it gets all over the place..take a paperclip and bend out a side and use that as a dipstick in the filler hole to check how much fluid you have. If it has oil on it, you're good. 
Bullfrog devised a great way to check the fluid before it gets all over the place..take a paperclip and bend out a side and use that as a dipstick in the filler hole to check how much fluid you have. If it has oil on it, you're good. 
JK Jedi
Joined: Feb 2007
Posts: 7,568
Likes: 3
From: Denver, CO
Usually the front takes 2 bottles. The back takes about 2 1/2. Bullfrog devised a great way to check the fluid before it gets all over the place..take a paperclip and bend out a side and use that as a dipstick in the filler hole to check how much fluid you have. If it has oil on it, you're good.
Bullfrog devised a great way to check the fluid before it gets all over the place..take a paperclip and bend out a side and use that as a dipstick in the filler hole to check how much fluid you have. If it has oil on it, you're good.