How do the front axle zerk fittings come off when the base is round? I'm used to hex based zerks that unscrew, and I'm nervous about putting vice grips on this to see what happens. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20240615/b9cfee30/attachment.htm>