Can't see where these are vented, presume it's remote.
Is it a combined vent for both?
Where is vent located?
Is it a combined vent for both?
Where is vent located?
I can't answer for your '03 Rubi, since I have an '05 non-Rubi. But I suspect your different transmission and different transfer case will have something similar to mine.
The NP231 transfer case has a vent near the top on the driver side near the transmission. It has a hose going across the transmission and up the passenger side of the firewall. The NSG370 transmission has a small vent cap on the shifter tower, no hose.
View attachment 425460
View attachment 425461
The AX15 has a cap on the shift tower, somewhat similar to the NSG370. Not sure about the NV3550, surely it has to vent somehow but I don't think it has a visible vent like the other two manuals.
The transfer cases are all as stated above: a barb fitting as part of the housing, driver side by transmission. A hose runs from there up to the firewall and has a small dust cap on the hose at the end.
Here's a picture of NV-3550 vent location I just found, someone posted several years back. Too bad they didn't extend it like T-case
@Alex01, didn’t you add an elbow to your breather on the NV-3550 and a tube to extend the breather up to the top of the firewall?