Re: Commercial 12 - tire chains?
There are a few methods for modifying tire chains. Monkey links can be used to replace broken links. Tire chain pliers for opening/closing non-welded links. A hammer and cold chisel using a vise also works for opening non-welded links. Bolt cutters/Dremel or grinder with cutoff wheel/hacksaw for removing links.
Gravelys: 1950 L, 1954 L, 1968 Comm 10A, 1969 C8, 1971 C8, 1984 5665
1967 430, 1969 432, 1980 8122