Maintenance - schedule or whenever?

[Gas Man]

Originally Posted by Trip

I change all three every 6k. I believe the tranny and final drive are 12k changes, but since it has known final drive issues, I go ahead and do it just in case. You can see if you are going to have a failure soon at least.

Right that is something similar to mine. BUt I just change all 3 every time. But I also do it twice as much as you do.