Dad went a bit mad on Nigel our scraper tractor, changed both front wheel bearings before either wheel had fallen off (not a bodge!) Bushed out the king pins with a couple old grease cartridges (bodge?) and put a load of old washers under the steering wheel to take out the slack.
Was two days before I could drive the thing in a straight line again
Was two days before I could drive the thing in a straight line again