2001 Rodeo power steering pressure hose o-ring size
 

The pressure hose rack and pinion output side o-ring has failed. I would prefer to not buy an entire kit for a single o-ring and can't find the o-ring size anywhere. Does anyone know what size it takes? My shoulders are going to explode if my temper doesn't first- I've never appreciated power steering more in my life.
Thanks in advance.