Originally Posted by SteveH
Pry the floating steel cap off the (ahem) 'breather' and install a piece of 3/8" fuel line and a hose clamp. You can buy the barbed fitting and screw that in, if you want to to extra fancy.
IMO, there is no 'good' Toyota axle breather - they eventually will clog and cause axle or transfer case leaks.
Good to see you post Steve! Thread hijack: I have certainly been thinking about you and your family down there in Black Forest!