Funnel goes straight in the tranny dipstick tube. I would go ahead and drain the transmission and change the filter... I usually tend to do so every 50,000 or so. I think of it as cheap insurance, I believe a filter kit is like $25 from NAPA, and some ATF is cheap as well. I definetly wouldnt wait till 150,000. If you have any questions about it feel free to PM me.


Ooohhh and I'd also check the differentials, and transfer case as well. Never hurts to keep a close eye on them.