[Cruzator]

I did mine around 110k. I was going too wait until 125 but had all the parts and had the time, so figured it would be silly not to do it. I used all Gm parts and changed all pulled, idlers, tensions, water pump and thermostat. Probably won't have to do it again. Old parts were in great shape.

 

[Cruzator]

from where did you buy your parts and for how much?

I got everything from Amazon. Looks like $328. All Gm. Timing belt, serpintine belt, water pump, both tensioners and idlers. I also replace my thermostat, which isn't included in that cost.