Here is a shot of the fittings I used - a brass 1/8" all female Tee, and 3 different size barb fittings:
1/8" for the e-locker hose
1/4" for the new diff barb fitting (replacing the factory breather plug on the housing)
5/16 for the new remote breather plug
The remote breather can be located either in the engine compartment, or in the fuel filler compartment. On my truck I feel the fuel filler area is plenty high off the ground, at least as good of clearance as the engine compartment area, and less hose to run (meaning less chance of chafing and wearing a hole in it, or it gettng pinched somehow and defeating the purpose of the breather). Since the new Toyota breather is larger than both the e-locker and diff fitings combined, it is plenty to handle both jobs by itself - and since both fittings use the same style factory plug it doesnt make sense to run 2 lengths of hose to 2 seperate filters of the same type.
Again, yes this could be done much cheaper with vinyl hose and plastic fittings, I just figure why chance a $1300 differential and locker to cheap plastic tees and fitings. The Toyota factory breather plug is nylon, so thats going to be plenty strong.
The top breather with the tiny 1/8" fitting is the stock one off the e-locker - just pull it off and replace the existing hose with a longer section if you want to move it up seperately of the diff vent
