i think blue is for water/coolant

 

i've used both orange and black with no leaks. never tried blue but i don't see why it wouldn't work. just be sure and clean the cover with brake cleaner, surround the bolt holes and don't over torque them.

edit.. the milky white is water from leaking seals. been driving through creeks huh . i've you don't feel like changing the seals (like me), just change the oil regularly.

 

how do i know if the seals are bad? do they leak or what are the symptoms of that?

 

leaking oil out of the seals

and that is some nasty fluid from alot of water
its up to you

if they arent leaking fluid out of them, just change your fluid when you start to see it turning nasty or after you do alot of sunken axle wheelin

they are a little bit of work to replace.

you have to drain fluid, remove calipers, rotors, hub+axle shaft assy., remove carrier(including shims, etc), remove old seals, and get an installer to press in new seals by both sides of carrier
then put it all back together
i dont know if autozone has them available for rent... no idea, i use the ones at work

 

i work at a garage so we have a press here it wouldnt be hard to press them.... i personally never took the thing in any water i think it was the previous owner who did it. but ill keep an eye on it

 

it does not require the use of a shop type press.
it is an installer

here is picture of installer and discs that slide on ends of intaller
[img=http://img227.imageshack.us/img227/2175/discskp6.th.gif]

[img=http://img529.imageshack.us/img529/9795/installerrrkz3.th.gif]


this all takes place inside of diff. housing

here is how it works

[img=http://img411.imageshack.us/img411/4585/turnbuckleassyhz0.th.gif]



from daimler chrysler

 

forgot to add to remove inner axle shafts with a pry bar

 

what a pain in the **** lol

 

haha
its not terribly hard to do...
just take your time and make sure you have an entire afternoon to mess with it

it is a lot tho...
get an estimate from your local dealerhsip and see how much they charge...
if ur around here i would take u as a side job...

 

i work for a garage so if they are bad and i dont wanna do it i can con one of the guys into doing it for a case of beer and a pizza lol thanks for the offer tho, virginia a bit of a drive from ohio