When does the front and rear differentials need to be serviced on a 2006 jeep wrangler

Engine, with filter..........6.1 quarts [1]
Cooling System, Initial Fill..........10.6 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 30RH Initial Fill..........4.1 quarts
Automatic Transmission, 32RH Initial Fill..........4.1 quarts
Automatic Transmission, Total Fill
3 speed 30RH..........7 quarts
3 speed 32RH..........8.6 quarts
Manual Transmission, AX-5 2WD..........7.4 pints
Manual Transmission, AX-15 2WD..........6.8 pints
Manual Transmission, AX-15 4WD..........6.8 pints
Differential, 181 FBI Front..........2.6 pints [2]
Differential, With 194 RBI Rear..........3.6 pints
Differential, With 216 RBI Rear..........4.1 pints
Transfer Case, 242..........3 pints
Transfer Case, 247..........3.4 pints
Transfer Case, 249..........3.4 pints
Transfer Case, 231..........2.2 pints

It alot of information to work with. No make, year, engine or transmission. Most wranglers came with a Dana 30 front differential and a Dana 35 rear. Hope this helps.

I'm not sure, but there are thousands of Jeep forums on the web-I'm sure there are guys there that can tell you everything you need to know.

If you have an actuator box on the passenger front axle that may be disconnected or broken. If not remove the cover from the front differential and check the gears...they may be broken.

the problem with the leak is the rear main seal on the engine is blown and should be replaced and you can pick one of these up at any auto parts store

can't really go wrong with synthetic oil as long as the grade and weight of the oil is equivelent to what is in there now.

if this is a 5 speed manual transmission...all you need to do before putting your jeep into reverese is puting it into first gear and then shifting it to reverse to avoid any grinding or problems shifting into reverse...this isn't a problem just a poor jeep design by not installing an extra gear to eliminate this grinding or shifting problem

yes the first 3 digits 411 is your ratio and they should be on the other rears the same way they have to match the front rear end

I just installed a new 6" bose base speaker in my 2006 rubicon unlimited center console. first 2 pins one is + other is - 3rd pin with a missing pin is another hot. + are on same side. next two pins are front left speaker. then the right front. then the left rear then the right rear.

Harry