The harmonic balancer is the big round piece of metal that was on the end of the crankshaft. It had the large bolt going through it to the crankshaft end that you probably had fun getting loose. It had the lower sepentine belt pulley bolted to it. It had to come off before you get the lower cover off to completely expose the belt.

If you feel real good about the timing then you may not want to start the engine before reassembly. I just know that the first one I did, I ended up doing twice because I got the crank pulley one tooth off and had to tear it all back down. Thank goodness it was on a 2.6L older trooper that was not as involved as the 3.2L and 3.5L motors are. And the second time you do it, it goes faster after you stop cussing.

I don't believe there are any heater hoses that are easy to replace at the same time as the timing belt.

John