the question should be 'do all old GM steering boxes leak like harleys', the answer would be yes need to regasket it and use a stickier oil [JD corn head grease works] in it
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
need to regasket it and use a stickier oil [JD corn head grease works] in it