Those hoses for the trottle body are different on the 96-2000 than the 2001-2002. The hoses for the aux heater core on some models can be done with stock heater hose I don't recall the size if you have a aux heater core there are two hoses under the car to the right of the Transmission. As mentioned before be sure to do the ones for the oil cooler and replace the heater valve. I did all of my hoses on my rebuilds why do all the work and risk not changing a 6 dollar hose and lose a engine.