Originally Posted by BoilerUpXFire
I did my rear differential on my 2004 along with most of the maintenance listed here around 45K miles this summer and most of the maintenance was needed at that point.
Ditto.
I've changed all my fluids between 45-65k and the only fluids that looked OK were the trans and power steering... key word being OK. The worst fluids were the coolant and the diff... the coolant had some stuff floating on top and the diff smelled burnt. I also just did spark plugs at 65K (not as hard as everyone says it is) and they were a bit to corroded for my taste. The belt look pretty good but it is nearly 9 yrs old now and has had a bit of oil leak on to it so I'll be changing that out soon as well.
It definitely runs smoother with all new fluids in it and a tune up.