Okay, I have read a lot about relocating the air vent in the pump housing on the 32RH and 30 RH. I think this is the best way. No overdrive 3 speed.
Some sites have drilled into the top of the bellhousing into the pump. Not only does a lot of shavings go into the trans but it would make it very hard to pull the pump after. Probably affect the reaction seal too (seal on the outer of the pump-big O ring)
Did some more web searches and have found some drag racers that have been relocated the vent to the tail housing without issue. Also the webbing for the adapter housing is nice and thick on the top making it a great location to tap the fitting which does not even stick out on the inside of the housing.
So I blocked off the pump vent with a 1/4" NPT plug. Drilled and tapped a male 1/4" NPT 90 degree fitting with 3/8" barb into the adapter housing(centred at 3/4" back on the top). I'm using 3/8" hose that connects to the barb that will run up the rear corner, into the cab, up and out the air vent in the hard top where the wires for the rear wiper go. Should be nice and high. When I take the top off will just tie strap the vent line to the roll bar.
Not quite done yet, pics show a straight 1/4" that I will be using for the oil out and return from the cooler as 90 is still on order. Just using it for reference for now. I also have a 2 1/2" body lift that makes things a little easier. Will post more pics later.
From the info I gathered this is probably the best way to relocate the air vent if you plan on going through deep water or mud. You will also need a snorkel for the air intake and to silicone the harness for the ECM.
good luck lol