on my Rodeo 2002, it was exactly like this - a threaded metal valve, in the same place. You probably can use Rodeo 2002 3.2 as a reference vehicle, I suppose it is the same application.

Oleg
Axiom 4WD 2004: OME shocks, 32" BFG Mudders, RockSliderz, OME929+2" spacers, Stinkyfab bent RE rear links, front ARB locker, rear No-Slip locker, DOR front axle lowering kit, custom middle section skid plate, IronMan torsion bars.
Deceased Rodeo'02 4WD.