my early 99 has 244,000 it has been a great truck I us it for work and pull anything from a 20' dump bed trailer to equipment (trackhoe, skidsteer).
90,000 cps failed
around 110,000 water pump
100,000 and 200,000 transmission (I believe now it was the dumpbed and no gauges) I drove it very very hard when pulling
230,000 idler pulley assemble
That is it other than of course maint. items (batteries, etc)