a wild guess is may be for a 5 link sett up or watts linkage type of set up that would take place of the pannard rod or a frame set up to allow greater axle articulation and reduce axle steer. only a quess mind
Hmm. Theyre a fair bit behind the axle. Also the pins point towards the back of the chassis. Perhaps they were hoping to go ploughing?
Anyway, i shant bother cutting them off, theyre not really in the way and who knows, i may find a use for them!