I am in the process of obtaining parts for a timing belt change on my 98 Outback with the 2.5.
I ordered a kit that includes 1 tensioner, 2 upper idlers, 1 lower idler, 4 camshaft seals, 1 crankshaft seal, water pump, and the belt. I also plan on doing a coolant flush and change along with the thermostat.
So what am I missing that should be changed out along with the above list. The engine has 156,000 miles on it. Head gaskets have been redone and no noticeable problems.