I'm at 58,000 on my '05, and getting ready to change the rear diff fluid myself, since the dealer wants to charge an arm and a leg to change it (along with my timing belt).
I have a few quarts of Redline 75W90 from my transmission fluid change, so that will do just fine right? What about that Lightweight Shockproof stuff?
Any tips/tricks for the rear diff change? I've never done it... I'm reading that you just take both of the plugs out, let it drain, then put the bottom one on and fill it up until it's spilling out of the top hole?
I feel bad because I don't think the rear diff fluid has ever been changed. At least, not since I've had the car with 30,000 miles on it.
And lastly, what's the general consensus on timing belts? I hear the stock one on our WRX is pretty weak, and people upgrade to like, the STi one, Cosworth, or something else that's stronger? But then again, I had a local tuning shop here tell me that the stock belt is good to 100,000 miles and I shouldn't even bother with spending $ on an upgraded timing belt?
And obviously, you can't do the timing belt replacement at home, eh? Not for the mediocre mechanic with *almost* all the tools to get work done on the car.