I can get the shifter into gear, but it feels like there is something in the gate holding me up from shifting the car into gear. With some extra pressure I can push past the resistance.

I've been poking around other forums and the interwebs, and it sounds like I need to do a CDV delete and bleed the clutch.

Anyone ever done this? Is there anything else that could be wrong? Should I go ahead and change the transmission and differential fluid?

It is a 2004 with 18,500 miles.