My friend and I are going to do some catch-up maintenance on his new-to-him V6 early 00s Mustang (5 speed). We are planning to change all the fluids (engine oil, trans fluid, diff fluid, and brake fluid) and change the spark plugs and all the filters. Is there anything special about this or is it pretty straight forward?
We got the Haynes manual just in case and it says that for 'trak-lok' axles I'd need to add 4oz of friction modifier to the diff lube. I am assuming that this is LSD and not traction control correct?

